Bob has a wad of cash with $5 and $10 bills in it. Altogether Bob has 18 bills that total $125. Write and solve a system of equations to figure out how many $5 bills and how many $10 bills Bob has.

Sally's dog boarding service currently has 4 Great Danes, 6 golden retrievers, 20 mastiffs, and 12 Doberman Pinschers. What is the ratio of mastiffs to the total number of dogs at Sally's boarding service? A) 10:21 B) 9:21 C) 21:10 D) 21:9

If i have a pair of shoes how many shoes do i have?

F (x) = 4x+13 and g (x) = 10x-2, solve for (f+g) (x)

What is a markdown less than 1%?

Sonji went to a sandwich shop for lunch with 8 of her friends. Part of the group ordered only a sandwich for $5, and the rest of the group ordered a combo for $8. The bill for all 9 people totaled $66.00.

15. 5x - 2y = - 19 8x + 5y = - 55

The morning temperature in Antarctica is - 52 degrees F. how many degrees must the temperature rise to reach o degrees F?

What are the zeros of f (x) x^2-x-20

Find the sets of numbers to which 6/7 belongs. select all that apply A. rational numbers B. real numbers C. whole numbers D. natural numbers E. integers F. irrational numbers

If the variable a is a whole number and the variable d is a decimal less than 1, will d times a be greater or less than a? Why?