A number decreased by negative 2 is equal to 21. Write an algebraic equation.

Let a = (-3,4) and v = (4,-5). If a + b = v. find b.

A rectangular board is 1.6 meters long and 1.2 meters wide. What is the area of the board in square millimeters? Do not round your answer. Be sure to include the correct unit in your answer.

Find a non-zero, two-by-two matrix such that:

A population of 500 animals that decreases at an annual rate of 17%

What's the distributive property to create an equivalent expression to 6 (5x-3)

What is the algebraic expression for n divided by 8

The regular price of a bag is 41.44 dollars during a sale the bag was marked off 20% what was the price of the bag during the sale

It took 25.5 bottles to fill a cooler and each bottle contained 1.8 liters. How many liters are in the cooler

192-78 rounding tobestimate difference

Is Angel 1: 60 and angle 2: 30 a complementary angle