Louis want 3 group of 3 notebook and 5 pens. she already has 12 notebook how many pen will she need

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

Agroup of three friends order a combo meal which includes two slices of pizza and a drink each drink is priced at $2.50 the combined total of $31.50 how much is the cost of a slice of pizza