What is the sum of complex numbers 2+3i and 4+8i, where i = square root - 1

4 times the larger of two numbers is equal to 7 times the smaller number

The length of a rectangle is 6cm longer than its width. If the perimeter of the rectangle is 60cm, find its length and width.

What is the equation of the horizontal line through (-7,-3)

How many times does 4 go into 208

In a survey, a group of students are asked their favorite sport. 18 students chose "other" Football - 37.5% Baseball - 40% Other-?% How many students participated? How many chose football?

Use substitution to solve the linear system of equations. y = - 3x + 1 y = 2x - 4

Brian paid $28 for 13 gallons of gasoline. To the nearest cent, how much did one gallon of gasoline cost?

Suppose that the water level of a river is 34 feet and that it is receding at a rate of 0.5 foot per day. Write an equation for the water level, w, after d days. In how many days will the water level be 26 feet?

What is 56% as a decimal and a friction

Slope intercept form of 5x-2y=6