An electrician charges $80 an hour. His apprentice earns $42 an hour. The apprentice works on a job 3 hours less than the plumber. Together they earn $850. How many hours did they each work?

If a jacket is reduced by 98% in a sale to 10.40, what is the original price

What is the percentage of 0.204?

Round 8.293 to the nearest hundredths?

Is 20/46 greater than or less than 1/2

Seven cards are marked with the numbers 1, 2,3, 4, 5, 6, and 7 , then shuffled, and two cards are drawn. how many different 2 -card combinations are possible?

Find the quotient of ' (16t^2-4) / (8t+4) '

The Science Club has 35 members, 10 girls and 25 boys. What is the ratio of girls to boys in the Science Club? A. 2:1 B. 2:5 C. 5:2

The cost of petrol rises by 2 cents a liter. last week a man bought 20 liters at the old price. This week he bought 10 liters at the new price. Altogether, the petrol costs $9.20. What was the old price for 1 liter?

1. Which equation represents the linear graph? A) y = 2x - 4 B) y = 2x + 4 C) y = 4x - 2 D) y = 4x + 2

Mary has $500 in her account. She makes a $350 withdrawal, deposits $100, and then gets charged a $20 fee. How much does she have in her account? A) $180 B) $230 C) $290 D) $340