Alex thinks of a number. he adds 18 then divides it by 2. he gets the same answer that he would have if he had multiplied the original number by 5. calculate the mystery number.

6 and 3/4 plus 4 and 2/3 equals what

g The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm2/min. At what rate is the base of the triangle changing when the altitude is 20 cm and the area is 160 cm2

At a local green market, Debra bought 5 ounces of chinese long beans for $13.55. at that rate, how much would she pay for 8 ounces of chinese long beans?

Grace cut 3 pieces of ribbon; each piece was 2/5 of a foot long. How many feet of ribbon does she have in all?

What is the probability of rolling a six sided die and landing on a 6?

The diagonal of a rectangle is 100 units. The width is 80 units. What is the area of the rectangle in square units.

Is 9m=9m the answer for 3 (m-3) = 3m-9? if not what is the answer?

During bully's first week working in China shop he breaks a vase that cost $45.89 two glasses that cost $16.25 each and a platter that cost $135.49 if he makes $5.25 an hour how many hours will we have to work to pay for the things he broke

How do I graph and find slope intercept for for x+y=0

Simplfiy 12 the square root of 3 over12 and the square root of 7?