Matthew wants to shoot up the school he has 3 guns he only has 4 magazines for each gun he wants to have 4 more mags with 9-11 bullets

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle

Simplify the algebraic expression 8y-2(y+4)

Taber invested money in an account where interest is compounded every year. he made no withdrawals or deposits. the function a(t)=525(1+0.05)^t represent the amount of money in the account after t years. how much money did taber origanally invested?