Abike to do tricks with has 20-inch-diameter wheels. find the area of each wheel. round to the nearest whole number. (hint: use the π key on your calculator and round at the last step. if you do not have such a key, use 22/7 for π and round at the last step.)

a)314 in.2
b)1,256 in.2
c)1,257 in.2
d)312 in.2

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

What is the product? a-3/15a × 5/a-3