Consider the matrices. A=[4, 7 ]. B=[5, -4]
[-3, 8]. [3, 6 ]
[-5, -2] [-1, 8 ]
What is the result of A-B?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students