Find S5 when Sn = 40 - 8n

How many solutions does the system x + y = 3 and 2x + 2y = 5 have?

What is 3.2 as a mixed number in simplest form.

In Sakura's garden, for every 5 red flowers, there are 10 yellow flowers. There are 75 total red and yellow flowers. How many red flowers are in Sakura's garden?

Braden's employers covers 70% of the cost of a $5100-per-year health insurance plan, and Braden's share of the cost of the plan is his only optional dedication. How much is deducted from Braden's paycheck each month for health insurance?

Cheryl has $56 and wants to buy as many notebooks as she can to donate to her school. If each notebook costs $1.60, which inequality shows n, the maximum number of notebooks she can buy with her money?

The perimiter of a rectangle is 46cm. The area is 90cm2. What are the lengths of the rectangles sides.

You live 3 1/2 miles from school. In the morning, you walk 1/4 mile directly toward school to take the bus. After school, you walk home the same distance when the bus drops you off. How many miles do you ride the bus to and from school each day?

The equation 8w+4 = 76 models how many weeks, w, it takes a student to save for a new video game. If the student saves the same amount of money each week, how many weeks does it take the student to save for the new video game?

The sum of two numbers is 50 and their difference is 4

What is 5 + (3y x 5x)