Which 2 equations would you use to solve this system? —
The difference of two numbers is 4. Their sum is 32. What are the numbers?

• x + y = 4
• x - y = 4
• x + y = 32
• x - y = 32

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?