Which number could not be value of x
A.8
B.9
C.12
D.21

Evaluate the expression for the given value of the variable 7a - 4a for a =8

One integer is 8 times another. if the product is 72, then find the integers

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000