If he earns $12 per hr for 40 hrs of week and earns $18 per hr for hours worked over 40 how many hrs did he work if he earned $642

What two numbers add up to 13 but multiply to 36

Convert the following fraction to a decimal and then to a percent. round the decimal to three places before converting to percent. 9/10 0.09: 9% 0.90; 90% 0.90; 9% 0.09; 90% user: find the following quantity. 6% of 124 = 7.44 0.744 74.4 744

Emma is debating whether to use a straightedge and compass or a computer drawing program to complete a construction of a square inscribed in a circle. Which method do you think would take the longest to complete the construction and why?

In a certain lottery, three white balls are drawn (at random) from ten balls numbered from 1 to 10, and one red SuperBall is drawn (at random) from ten balls numbered from 11 to 20.

Simplify (2.1m - 5.2) + (3.7m - 6.4)

Sharita does special typing jobs for scientists. She charges $7 for 3 pages and $3 for each additional page of scientific typing. Sonia, a biologist, paid $97 to have a research paper typed

How many times can 2 go into 18

How many five-letter codes can be made if no letter can be used twice? (There are 26 letters in the alphabet.)

How to prove using basic definitions, If xy=xz then y=z

Some species of hummingbirds appear to hover in mid-air by flapping their tiny wings 85 times per second. How many times do their wings flap in one minute?