15 out of 30 students in 6th grade have at least one sibling. If there are 400 students in 6th grade, predict how many will have at least one sibling. Set up and solve a proportion. HELP PLZ!

Find the area of a parallelogram with base 15 yards and height 21 2/3

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.

Abaseball team drinks 10/4 gallons of water during a game. which mixed number represents the gallons of water consumed? a) 1 1/2 gallons b) 2 1/2 gallons c) 2 3/4 gallons d) 3 1/2 gallons