When you reverse the digits in a certain two-digits number you decrease it's value by 9. Find the number if the sum of its digits is 9.

Outline at least 4 methods of solving linear systems.

Solve the following system by substitution method. 2x-7y=12 -x+3.5=-6

A positive integer is 1010 more than 2727 times another. their product is 1211712117. find the two integers.

What is "shift y = 5x 3 units up"

Jane and Jill both love to collect books. Jane has twice as many books as Jill. Together, they have a total of 216 books in their collection. How many books does Jane have?

Find the length of an arc formed by a 90 degree angle on a circle with a radius of 6 the hcc

Which of the following sentences contains a gerund phrase (not a verb phrase or just a gerund by itself) ?

How is a debit card differ from a credit card

3a+3b=18 What can you you fill in the "a" and "b" blanks to get 18

What property states that any element is equivalent to itself?