Which expression or value is equivalent to (8+2i) (8-2i) ?

A carpenter has a plank 8 1/2 feet long. How many feet should be cut off to make a plank 5 7/8 feet long?

Eddie is practicing wind sprints during his summer break. He's able to run 72 meters in 12 seconds. If d represents distance and t represents time, which equation represents this proportional relationship?]

What is the place value of 9 in 3,960,135,741

Three-fourths was subtracted from a number, and then 5 was added to the result. The sum was - 7. What was the original number? -3 1/2 3 1/2 -11 1/2 2 1/2

Ms Nunez is correcting math test, she corrects 7 test before school and 5 test after school. If each test takes her 1/5 hour to correct, how long will it take Ms. Nunez to correct the test?

What is the sale price of a cell phone that is on sale for 15% off if the regular price is $75? A.) $60.00 B.) $63.75 C.) $64.25

The sum of a number and six is multiplied by negative four. The result is eight. What is the number?

How do you write 74 is the sum of 7

Does the remainder round up or down to get an average whole number

Mikaela friends bought a big box of crackers to the movie theater. 53 crackers are whole wheat and 29 crackers are cheese flavored. the remaining 1/3 of the box contains sesame seeds crackers. how many crackers are in the box altogether?