Which summation formula represents the series below?

13 + 9 + 5 + 1

Compare 7/12 and 1/2

How are real numbers used to slove problems

Dmitri wants to cover the top and sides of the box shown with glass tiles that are 5mm square. How many tiles does he need? (The length is 15cm, the width is 20cm and the height is 9cm).

Estimate the fur seal pup population in Rookery A 5498 fur seal pups were tagged in early August In late August, a sample of 1300 pups was cbserved and 157 of these were found to have been previously tagged.

Which expression is equivalent to 8 - 3

Lenny earns at least $50 a day at his job. Write an inequality showing how much Lenny could earn on any day at his job.

A rectangle that measures 2 feet by 11 feet. What is the area of the rectangle? square feet

Solve the equation if x = 7. 5x + 9

How do I simplify the radical: square root of 324

Checks that have been processed by the bank are no longer negotiable are