Multiply.

-3 • 7 =

A.

-21

B.

-11

C.

11

D.

21

Jason was hired to mow a lawn that covers an area of 2 3/4 acres. It took him 4 1/8 hours to complete the job. What was his unit rate in hours per acre?

What is 150% of 625? using an Equation

On a cold January morning, the radiator fluid in Kuri's car is - 15 F. With the engine running, the temperature rises by 2.5°F per minute. How long before the radiator temperature reaches 40°F?

Find (x. y). y=6x-11 and - 2x-3y=-7

N a 4-hour examination of 420 questions, there are 60 mathematics problems. if twice as much time should be allowed for each mathematics problem as for each of the other questions, how many minutes should be spent on the mathematics problems?

Show up materialize

Selena's snow cones stand sells Small snowcones for $2 dollars and large snow comes for $3.50 one summer day she sold $163 worth of snow cones.

Whats the radius if a basketball?

What is 66 divided by 117216?

Consider f (x) = 1.8x - 10 and g (x) = - 4. A 2 column table with 6 rows. The first column, x, has the entries, negative 4, 0, 2, 4. The second column, f (x) has the entries, negative 17.2, negative 13.6, negative 10, negative 6.4, negative 2.8.