Y=3x+4 make x the subject

Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost. swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

What is the unit rate of, 75% high fiber chimp food to 25% high protein chimp food.