This Basic geometry and measurement course is a refresher of length, area, perimeter, volume, angle measure, and transformations of 2D and 3D figures. If you are learning the content for the first time, consider using the grade-level courses for more in-depth instruction.
Lets is the third person singular present tense form of the verb let meaning to permit or allow. In the questioner’s examples, the sentence means to say “Product (allows/permits you to) do something awesome”, so the form with lets is correct.
verbs - "Let's" vs. "lets": which is correct? - English Language ...
Many people use "let, let's and lets" in conversation What's the difference between them?
practice suggests an act or method followed with regularity and usually through choice.
PRACTICE definition: 1. action rather than thought or ideas: 2. used to describe what really happens as opposed to what…. Learn more.
To do or perform habitually or customarily; make a habit of: practices courtesy in social situations. 2. To do or perform (something) repeatedly in order to acquire or polish a skill: practice a dance step. 3. To give lessons or repeated instructions to; drill: practiced the students in handwriting. 4.
a usual or customary action or proceeding: it was my practice to rise at six, she made a practice of walking to work repetition or exercise of an activity in order to achieve mastery and fluency
In the UK, 'practice' is a noun (like preparation), but 'practise' is a verb (like to prepare). The difference between practice and practise only affects those following British writing conventions.
British, Australian, and New Zealand English spelling distinguishes between practice (noun) and practise (verb), analogously with advice / advise. In American English, the spelling practice is commonly used for both noun and verb. Both practices are found equally in Canadian English.