Simplify 15r10-5r8+40r2/5r4

You use an inclined plane to move furniture into a truck. You. Perform 224 kj of work, but only do 91 kJ of useful work. What is the efficiency of the inclined plane? A. 68.2% B. 246.1 % C. 12.8% D. 40.6%

A florist has an order to make flower bouquets. The order calls for the use of 45 roses and 63 carnations. Each bouquet made will need to be the same.

Mr. Spencer sells furniture. He earned $225 for selling 5 sofas. Mr. Spencer earned $300 for selling 8 sofas. Which of the following equations represents this situation, where s represents the number of sofas Mr.

The speeders soccer team charged $12 to wash each car at a fundraiser car wash. The team collected a total of $672 by the end of the day. How many cars did the team wash?

Sharifa's white ball rolled 143 centimeters in 4 seconds and her green ball rolled 112 centimeters in 3 seconds. Which ball rolled at a greater rate of speed? A. white ball B. green ball C. The white and green ball rolled at the same rate of speed.

A function rule takes an input, n, and converts it into an output, y, by increasing one half of the input by 10. Determine the output for this rule when the input is 50 and then write an equation for this rule.

Write the fraction 1 and 1/2 as a decimal

Courtney had $55 to spend at the fair. She paid $22.50 for rides and $14.25 for lunch and snacks. Courtney says she has $18.25 left to play games at the fair. Which explanation explains whether Courtney is correct or not? A. Courtney is not correct.

What are all the common factors of 24,64 and88

Which graph represents the solution to the given system? y = - 4x + 4 y = 1/2 x - 2