A scientist wants a 45 milliliter saline solution with a concentration of 11%. She has concentrations of 7% and 19%. How much of each solution must she use to get the desired concentration?

How do you graph 3x-4y=-4 for the domain D:{8,4,0,-4,-8}

If the surface area of a sphere is equal to the volume of the sphere, then what is the length of its radius?

If two numbers have a sum of 12 and a difference of 2 what is the product of the two numbers?

A car enters an interstate highway 15 mi north of a city. The car travels north at an average speed of 62.5 mph. Which equation models the car's distance d from the city after traveling for h hours?

What is the equation for the problem: Find two positive numbers whose ratio is 2:3 and whose product is 600.

Mr lippman bought a dryer for 160 bucks and sold it for 240 bucks. if overhead expenses were 20% of the selling price, what was the rate of profit on the selling price?

How to get an equation from a table

Explain how yuo know the values of the digits in the number58

Laura family is going on a vacation. they will drive 4,180 miles over the next two weeks. about how many miles will they drive on average each week?

You work delivering food for a local farmer. You sell eggs from the farm at a price of 3 for $2.00, 6 for $3.50, 12 for $6.00, and 24 for $13.00. What is the unit cost per egg for the worst deal? A. $0.50 B. $0.67 C. $1.50 D. $1.85