Find the value of the expression 4a4 - 2b2 + 40 when a = 2 and b = 7.

a. 6

b. 39

c. 74

d. 202

5.622 - 3 hundredths

One 40 pound bag of dog food will last rover 32 days. At that rate how many pounds of dog food does rover need in 60 days? 68 70 72 75

Find the value of y so that r//s

Is the number - 9/20 a rational number

The double stem-and-leaf plot, where the stem is in the middle and the leaves are on the other side, shows the high temperatures for two cities in the same week. Use the measures of variation to describe the data in the stem-and-leaf plot.

How do you divide big numbers? like for example, 2,673 : 486?

a student was 48 inches tall in 5th grade. now, the student measures 60 inches tall on 8th grade. what is the percent increase of the studet's height

Claire for to a show sale. Everything on the shelf is 35% off the marked price. She falls in love with a pair of red heels that are marked $64.99. if the sales tax is 7.5%, what will the total cost be.?

The population of a certain inner-city area is estimated to be declining according to the model P (t) = 452,000e-0.014t, where t is the number of years from the present.

18. 7. A baker's dozen (13) of cookies is on sale for $4.94. What is the cost of an individual cookie? ya