X + y = 12

x - y = 10

What is the value of the x-determinant for the system shown?

a) - 22

b) - 12

c) - 2

What is the answer to 9.4g=28.2

What value of x satisfies the equation 5x+1.5=7?

2.) Seperate the numbers below to their prime multipliers. 18 33 124

What's (7/8*2) + 6/8 + (5/2 * 3) + 4/8) + 1/8

Deja is a babysitter who charges $5 an hour for the first child and $2.50 for each additional child. How many children does she have to babysit, if she wants to at least $11.50 an hour?

A binomial probability experiment is conducted with the given parameters. Use technology to find the probability of x successes in the n independent trials of the experiment n=8, p=0.6, x<4

What is 2 3/5 + 1 3/5

Credit card A has an APR of 15.8% and an annual fee of $72, while credit card b has an Apr of 19.6% and no annual fee.

At another school they sell a different brand of gift wrap which costs $2 per package and cards for $5 per package. Your friends class sells 220 packages and earns a total of $695.

A publisher prints 1,912 copies of a book in each print run. If they print 305 runs, the manager wants to know about how many books will be printed. What is a reasonable estimate?