How much pure acid is needed to mix with 18L of 30% acid to increase the concentration of 50% acid

If the cost of those white tiles are $ 3.50 what is the unit cost per white

Identify the vertex of the function graphed below.

What's is a 50% discount on $125

Nina walked 15 yards to Paul's house. They then went hiking. Which rule shows how many yards Nina walks for every yard Paul walks?

The product of two positive integers is 120. One number is 2 less than five times the other. Select the equation that can be used to find the two numbers. x (2 - 5x) = 120 2x2 - 5x = 120 5x (x - 2) = 120 5x2 - 2x = 120

for a snack, the members of an after school club ate five-eighths of 24 bagels. how many bagels did the group eat

19 times 15 with estimating

The entire play is 1 3/4 hours long, which is evenly divided among 3 acts. How long is each act?

Which function in the vertex form is equivalent to f (x) = 4+x2-2x

Janette's sister charger $5.50 per hour before 9:00 p. m for babysitting and $8 per hour after 9:00 p. m she finished babysitting at 11:00 p. m and earned $38 at what did she begin babysitting?