What do the following two equations represent? y = -x+5 and 5x+5y=20

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

Awall map has a scale of 128 miles = 6 inches. the distance between springfield and lakeview is 2 feet on the map. what is the actual distance between springfield and lakeview? 384 miles 512 miles 1.13 miles 42.7 miles

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?