Melvin is pushing a tire during workout with the dimensions shown how many square inches of space has a tire covered after melvin pushes the tire 5 times around

George is 187 cm tall. his son, ralph, is 142 cm tall. who casts the longer shadow. george when the sun is 65° above the horizon, or ralph when the sun is 56° above the horizon? how much longer? (nearest centimeter)

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document