How do you solve

-3x+y=7

5x+2y=3

by substitution method?

A project produces a cash flow of $492 in year 1, $197 in year 2, and $857 in year 3. If the cost of capital is 14.5%, what is the project's PV?

Find the unit rate. #4.10 for 7 cans.

Paul is spreading grass seed on an area of his lawn that is 9 feet wide and 10 feet long. A bag of grass seed covers 15 square feet.

Simplify the expression by using a double-angle formula. cos-39° - sin²39

What does a linear graph look like?

Brett has a $60 online gift voucher. He plans to buy as many books as he can. Each book is $7. There is also a shipping charge of $2. How much can he spend without spending more than his gift voucher amount

For what positive value c does the equation logx = cx^4

If g (x) = 25 and h (x) = 4 - X, what is the value of (g•h) (-3) ?

Multiply 862.4 * 0.03

Which of the following is a graph that uses a rectangle and line segments to show the clustering of a set of data? A. Line graphs B. Scatter plots C. Dot plots D. Box and-whisker-plots