What is x in 31 - 12x = 211

Lex is saving money because she would like to purchase the new video gaming system that everyone has been talking about. After two weeks of saving, she had $47. After 24 weeks of saving, she had $430.

The length of the rectangle is 180 cm. What is its breadth?

Mary bought 20 bowls and plates for $96. each bowl cost $4.50 and each plate cost $1.50 more than a bowl. she bought more bowls than plates. how many bowls and how many plates did she buy?

Allison's car holds 15 gallons of gas. On a long trip, she fills the tank completely twice. The first time it costs $2.50 a gallon. If she spends a total of $76.50 on gas, how much did gas cost per gallon for the second tank?

How do you solve 68+c=57+69

If E partitions CD by a ratio of 1/8, then which of the following could be the location of E?

A Sprinter sprints at 8.0m/s. A cyclist rides at 20km/h. Who is faster? Show your workings clearly.

John and Kevin each bought apples at the store. John bought three more than twice the number of apples Kevin bought. If they bought 21 apples combined, how many apples did Kevin buy?

You invest $3,756.00 and buy 100 shares of a company's stock. Their value increases by 12%. How much is each share worth?

220 students went on a field trip. eight buses were filled and 4 students traveled in car. how many students were in each bus?