What are extremes in math with an example so I can understand it better?

Which algebraic expression represents the phrase "seven more than half of a number

6. Which expression is equivalent to the algebraic expression below? A - 5 C. - 12 + 20 D. - 128 - 5

Examine the power 5^4

Ms. Smith typed for 12 minutes at a constant rate of 60 words per minute. Mr. Barnes typed the same number of words at a rate of 80 words per minute, how many minutes did it take Mr. Barnes to type the same amount as Ms.

What iz somution 6X - 7 = 12

Carla, the baker, worked for 5 hours to make cookies. She made 380 cookies altogether. Write an equation to express how many cookies Carla made each hour.

17.8900 in word form

A parallelogram where opposite angles are equal and all sides are equal

Is 0.019 greater than0.02

What is the least common multiple of 4 and 10?