B-7 when b=24 9+p when p=11
3.67 a when a=2
2/3 x when x= 1/3
18/t when t = 3
1/2t when t=1/2
p squared
b to the eighth power
t x t
5•x•x•x•x•x

17

20

7.34

2/9

6

1/4

I can't solve the others cause there are not enough info for me to answer.

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870