X : 28 = 7 : x calculate the positive value of x.

The sum of 3 less than 5 times a number and the number increases by 9 is 24. What is the number.?

Which number in the replacement set {1,2,3,4} makes 6x+4=22 a true statement? A. 1 B. 2 C. 3 D. 4

A store has clearance items that have been marked down by 50%. They are advertising an additional markdown of 25% off the clearance price. A cashmere sweater has an original price of $345, but is now a clearance item.

Find the sum of the first 7 terms for the geometric series: 1/3+1+3+9 + ...

You need a 25% alcohol solution. On hand, you have a 45 mL of a 15% alcohol mixture. You also have 30% alcohol mixture. How much of the 30% mixture will you need to add to obtain the desired solution?

Ron and amber bought a pizza. Ron ate 3/10 of the pizza. Am bee ate 1/10 of the pizza together which fraction of the pizza did they eat

The sum of two numbers is 35. twice the first number is equal to 5 times the second number. find the two numbers

If w=5, what is the value of 7w-4?

Select the sets that are not functions. Choose all that apply. A = { (1, 2), (2, 3), (3, 4), (4, 5) } B = { (1, 2), (2, 1), (3, 0), (4, - 1) } C = { (-1, 3), (0, 3), (1, 3), (2, 3) } D = { (1, 1), (1, 2), (1, 3), (1, 4) } E =

As a self employed seamstress you know that it takes 7 yards of material to make 3 jackets. You bought 15 yards of material to make 7 jackets. Did you buy enough material?