90 students took their drivers test over the course of a week. A survey of students who had taken the driving lesson before their test was taken and the results recorded below. What percentage of students who had taken 20 or more driving lessons failed the test?
A. 17%
B. 42%
C. 23%
D. 58%

Find the greatest common factor of -30x 4 yz 3 and 75x 4 z 2.

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.

Find the value of ax 4 ; a = 2, x = 1. select one: a. 2 b. 4 c. 1 d. 8