Washing 2 cars and 3 trucks takes 130 minutes. washing 2 cars and 5 trucks takes 190 minutes. how long does it take to watch each type of vehicle?

A craftsman builds two kinds of birdhouses, one for wrens and one for bluebirds. Each wren birdhouse takes 3 hours of labor and 4 units of lumber. Each bluebird house requires 2 hours of labor and 10 units of lumber.

What is 63 1/4 as a rational number?

If you have zero cookies and share them amongst zero friends, how would you write the equation and solve it?

What are meters into centimeters

Find the solution set (x+1) (x+1) = 0

How does the volume of a sphere with radius 2cm compare to the volume of a sphere with radius 1cm

6 yards to 36 yards. Find the percent of change. Round to the nearest tenth of a percent if necessary.

Mark, evan, and cayla are playing a game. there are 3 blue marbles, 2 red, and 1 green marble. if mark pulls a blue marble he gets $1. if evan pulls a red marble, he gets a $2. if cayla pulls a green marble, she gets $3.

How do you reduce 12/30 by 1/2

Maria's age of 17 years less than Orlando's age. The sum of their ages is 33 find their ages.