Solve by extracting roots. Round your answers to two decimal places.

5a² - 85 = 2.2a² - 30

A salesperson earns $300.50 per week plus 7% of her weekly sales. Which of the following describes the sales necessary for the salesperson to earn at least $900.85 in on week?

How many times does 21 go into 80

Ron walks 0.5 mile on the track in 10 minutes. steve walks 0.25 mile on the track in 6 minutes. find the unit rate for each walker in miles per hour. who is the faster walker?

In the last two weeks of a sale, prices are reduced first by 30% and then by a further 40% of the new price. What is the final sale price of a shirt which originally costs $15?

What property is this? - 3 12 = 12 (-3)

What is 5264716736 divided by 9

What requirements must be satisfied? select all that apply. a. at least one observation must be above or below 9090 sec. b. either the population is normally distributed, or ngreater than> 30, or both. c.

What is - 1 2/3 + 5/6

A pan of brownies was left on the counter and 1/4 of the brownies had already been eaten. Then John came along and a 2/3 of the brownies that were left. How much of the whole pan of brownies did John eat?

There are 12 eggs in one dozen, and 12 dozen in one gross. How many eggs are in a shipment of 24 gross