What is the value of expression? 5−8 • 5−4
a. 532
b. 54
c. 5−4
d. 5−12

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

What describes horizontal cross section of the right rectangle 6m 8m 5m

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.