Y(y+1)/y(y-2)*(y-2)(y-2)/4(y+1) simplified quotient

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

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?