Aballoon holds 4.2 cubic feet of air. the balloon is blown up further to hold 5.6 cubic feet. what is the volume of the air inside the balloon

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain