Samuel has a collection of toy cars his favorite are the 27 red ones which make up 60 percent of his collection. how many cars does samuel have?

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.