24 students of the 30 in Anderson’s class are wearing tennis shoes .He says that. 70% are wearing tennis shoes is he correct explain help me

Tamera puts 15/4 gallons of gasoline in her car. which mixed number represents the gallons of gasoline? a) 2 3/4 gallons b) 3 1/4 gallons c) 3 3/4 gallons d) 4 1/2 gallons answer it's worth a lot of points!

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?