−5.8c+4.2−3.1+1.4c hel

According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Acomposition of transformations maps δxyz to δx"y"z". the first transformation for this composition is , and the second transformation is a 90° rotation about point x'.