Fred completed 10 math problems this is 40% of the number of math problems he hast to do how many math problems does he have to do

Find the volume of the solid. (assume a=4ft)

Katy measured a mini-candy bar in the shape of a rectangular prism. It was 5 mm tall, 40 mm long, and 20 mm wide. Then she stacked 2 of the mini-candy bars on top of each other. What is the volume of the 2 stacked candy bars?

1 mile bike ride and each rotation of the tire is 72 inches. How many rotations in a 1 mile trip?

There are 100 coins scattered in a dark room. 90 have heads facing up and 10 are facing tails up. You cannot tell which coins are which. How do you sort the coins into two piles that contain the same number of tails up coins?

A rectangle has a width of 2x + 1 and a length of 5x - 4, which expression would represent the area of the rectangle?

Simplify. 9x^8-18x^6

Use the Binomial Theorem to find the binomial expansion of the expression. (d_5) 6

7x-12y=-32 what is the equation of a line parallel to the line shown

Solve this equation for X. 2/3 (x - 7) = - 2 1) y = 5 2/3 2) y = 8 1/3 3) y = 10 4) y = 4 Show work

A car race travles at constant speed. it can complete 4 laps of race course in 48 miuntes. how long dose it take to complete 10 laps?