Prove that for all integers a and b, if a mod 7 = 5 and b mod 7 = 6 then ab mod 7 = 2.

it takes ahmed 20 hours to rake the front lawn while his brother, jeff, can rake the lawn in 16 hours. how long will it take them to rake the lawn working together

Name the odered pair if the x-intercept is - 2

The total cost of 6 boxes of candy is $14.10. What is the average cost of one item?

Hisaki is making sugar cookies for a school back sale. He has 3 1/2 cups or sugar. The recipe calls for 3/4 cups of sugar for one batch of cookies. Which equation can be used to find b, the total number of sugar cookies hisaki can make?

A botanist measures the heights of 16 seedlings and obtains a mean and standard deviation of 72.5 cm and 4.5 cm, respectively.

If the side of the square is (4x-2y) what is the perimeter of the square

Which expression is equivalent to 3m + 1 - m? 2 + m - 1 + - m 1 + m 3m - 1 3m

How to write 16 as a fraction

This is Science not Math Certain high-frequency radiations are likely to cause harm to astronauts landing on Mars.

Hurricane katrina? more like hurricane- a. betsy b. katrina c. tortilla d. all of the above