exam Maths Puzzle Numerical Ability

Solve by graphing.
2x+y=-4
y=2

Read Solution (Total 0)

exam Other Question

Eric has 130 coins consisting of nickels and quaters. The coins combined value come to $15.90. Can you please help me find out how manyof each coin eric has. factoring: quadratic equations and completing the square
a^6-4a^3-21=0