Find the product of - 2+2i and its conjugate

For a certain bathtub, the cold water faucet can fill the tub in 7 minutes. The hot water faucet can fill the tub in 13 minutes. If both faucets are used together, how long will it take to fill the tub?

Anna is buying supplies to mail a gift to a friend who lives in California. First, she buys a shipping box for $4.95 and bubble wrap for $2.85. Then, she decides that she needs some shipping tape for $2.25 and a mailing label for $1.00.

How to do reciprocal

a sample of unknown liquid has a volume of 12.0ml and a mass off 6g, what is its density? and how did you do the problem?

A coffee shop orders 212 boxes of coffee each bag month if there are 68 bags of coffee age box about how many bags of coffee do they order each month

Sal ate dinner at his favorite restaurant. Sal knows that the amount of the bill before tax will be $52.60 and that the sales tax is 8%. Sal decides to leave a 20% tip for the waiter based on the pre-tax amount.

5 (a + 6) = 1. 5a - 30 2. 5a+6 3. 5a+30 4. a+30

Complete the solution of the equation. find the value of y when x equals 9 3x 4y=43

Corresponding sides of similar triangles are A opposite B proportional C equals

Find the inverse of A (r) = 15+3r