How much pure acid should be mixed with 6 gallons of a 20% acid solution in order to get a 40% acid solution

5.49 rounded to the nearest integer

Find a unit vector u with the same direction as x =.

In the diagram below, m∠A = 55° and m∠E = 35°. Which best explains the relationship between triangle ACB and triangle DCE? The triangles are not similar because only one pair of corresponding angles is congruent.

Write a compound inequality that represents the situation. all real numbers at least - 6 and at most 3

Find the value of x that makes the quadrilateral a parallelogram 2x+5=3x

Tom starts a lawnmowing business. Before he can begin, he purchases a new lawnmower. Each weekend he mows the same number of lawns and earns the same amount of money. Write an equation to show how much money he's earned at any week.

11. A collection of nickels and dimes is worth $9.45. If the number of dimes is doubled, the value is $16.65. Find the number of each coin.

How to identify the independent and dependent variable?

Which expression is less than - (-|-4.2|) ? a. |-4.2| b. - (-4.2) c. - | - (-4.2) | d. | - (-4.2) |

A taxi charges a flat rate of $1.75, plus an additional $0.65 per mile. If Erica has at most $10 to spend on the cab ride, how far could she travel?