Pamela can mow her lawn in 30 minutes. Kathy can do the same job in 60 minutes. How long would it take them to mow the lawn if they work together?

K divided by 2 is 40

How do you write an interger whose absolute value is greater than itself.

A sine function can be used to model light waves. Green light has a wave length, or period of about 510 nm. which equation best models green light? a. y = sin pi/510 theta b. y = sin pi/255 theta c. y = sin 510/pi theta d. sin 255/pi theta

Steve had $10 in his drawer. He put in an additional $5 before his parents doubled his money.

Convert the improper fraction to a mixed number. 17/3 = ? A - 3 1/3 B - 5 2/3 C - 6 1/3 D - 3 1/6

Write a quadratic equation with the roots 3/4 and - 5

A system of equations has no solution. If y=8x + 7 is one of the equations, which could be the other equation has no solution. If y=8x + 7 is one of the equations, which could be the other equation

How do you write down 6.24 divided by 2.4 showing work?

3x^3+3x^2-21x+4/x-2 long divide

Solve the equation b^2-13b+36=0