It costs $7.50 for popcorn and 2 videos. For 4 videos and a bag of popcorn it costs $12.50. How much does cost for 1 video?

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.

Sections of prefabricated wood are each 5 1/3 feet long. how long are 7 1/2 sections placed end to end?