Given that p*q denotes p+2q, evaluate -5*3.
(binary operations)

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8