1. A car gets 22 miles per gallon using gasoline costing $1.10 per gallon. What is the approximate cost, in dollars, for driving the car x iles using this gasoline?
A 0.50x B 0.30x C 0.11x D 0.10x E 0.05x
In a graduating class of 236 students, 142 took algebra and 121 took chemistry. What is the greatest number of students that could have taken both algebra and chemistry?
A 21 B 27 C 37 D 121 E 142
If one number is chosen at randon from the first 1,000 positive integers, what is the probability that the number chosen is multiple of both 2 and 8?
A 1/125 B 1/8 C 1/2 D 9/16 E 5/8
Can some good-hearted folks answer these questions. Thanks