2) Explain how the letter x is used when writing expressions, and give an example.

If X=3, What is the area of a triangle with sides, 6x, 7x, and 21x? A. 117 in² B. 378 in² C. 189 in² D. 58.5 in²

How does 300 turns on a primary coil and 3o turns on a secondary coil become 10:1 ratio?

Solve the equation 9 (x+1) ^4-19 (x+1) ^2+2=0

Polly wants to solve the following equations using the method of elimination: y = x - 2 y = 6x - 17 What number should y = x - 2 be multiplied by to eliminate x? 1 2 4 -6

At 11:30 a. m. the bottle is 1/4 of the way full. At what time will the bottle be 1/2 full? 11:31 a. m. 11:35 a. m. 11:40 a. m. 1:00 p. m

Quotient of the number and 22

Four friends went shopping for school clothes. Kim bought 5 shirts, Jill bought 4 shirts, Leslie bought 6 shirts, and Crystal bought only 1 shirt. Which answer choice represents the mean of the shirts purchased?

A store is having a sale on walnuts and chocolate chips. For 2 pounds of walnuts and 12 pounds of chocolate chips, the total cost is $33. For 5 pounds of walnuts and 3 pounds of chocolate chips, the total cost is $15.

1/2-18/25x=12/25-1/10x solve.

10. Sarah is planning to fence in her backyard garden. One side of the garden is 34 feet long, another side is 30 feet long, and the third side is 67 feet long. Find the perimeter of Sarah's garden to determine the amount of fencing material needed.