What is a scale factor because i'm new to 7th grade and i'm clueless.

A scale factor is a number which scales, or multiplies, some quantity.

Step-by-step explanation:

i.e: this shape multiplied by a scale factor of 2. Usually solved by a ratio

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

the height of the surface increases from the center out to the sides of the road

it is c!