Bob makes mixture of 4/7 of plant food for every gallon of water. if he uses 10 1/2 gallons of water, what is the total amount of plant food needed

Factor the monomial completely 42a3b3

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0