ACT Practice #3 - Juniors

If the function f(a,b) is defined as f(a,b)=2ab−(a+b) then f(3,4) = ?

The Korean BBQ taco truck sells short rib tacos for 99 cents. Christine has only pennies, nickels, dimes and quaters in her purse. If she wants to pay with exact change, then what is the least number of coins Christine can use to buy a 99 cent taco?

(Note: Assume any sales tax is include in the price.)

What is the area, in square inches, of a square with a side length of 8 inches?

If x=3 , then expression $$\frac{\left(x+1\right)^2}{x^2-1}$$ ​ is equal to:

Which of the following is NOT a factor of 1,776?

Lauren's world history teacher needs to select one of his 19 students to lead the class in song. Laurens teacher decides that the song leader, who will be chosen at random, CANNOT be any of the 4 seniors in the class. What is the probability that Lauren, who is NOT a senior, will be chosen?

If 4(x−5)+x=45 , then x=?

Joe rents a car to drive across the state to visit his family for Thanksgiving. The car rental company charges Joe $112 for the weekend rental, plus $0.99 for each mile he drives. If Joe drives the rental car m miles, then which of the following expressions gives Joe's total cost, in dollars, for renting the car?

Stella wants to buy a scooter for $4,800. A loan company offers to finance the purchase in return for payments of $130 a month for 4 years. If Stella were to finance the scooter, then how much more than the purchase price of the scooter will Stella have paid at the end of the 4-year period?