What is the value of x in the equation x - y = 30, when y = 15

After finishing her shift, a waitress wrote 2.5 under "hours worked" on her time card. How long did she work? A. 2 hours and 50 minutes B. 2 hours and 30 minutes C. 2 hours and 5 minutes D. 2 hours and 25 minutes

Samantha swam upstream for some distance in one hour. She then swam downstream the same river for the same distance in only 12 minutes. If the river flows at 4 mph, how fast can Samantha swim in still water?

On a certain ship that sank, the probability of survival was 0.294. Among first class passengers, it was 0.563. Were survival and ticket class independent? Explain. Choose the correct answer below. A.

Sales for a company were 6 million dollars more the second year than the first, and sales for the third year were tripled the sales for the second year.

What's the y intercept of the line? Y = - 2x - 8

What is the speed of a plane that travels at a rate of 520 mph against a wind of r mph?

18. * Gillway Community College, 43 out of 381 students earned honors. At Montessa Valley Community College, 17 out of 108 students earned honors.

Using the distributive property of multiplication for 12: (8+7) we get

A bag contains five green gumdrops and six red gumdrops. if kim pulls a green gumdrop out of the bag and eats it, what is the probability that the next gumdrop she pulls out will be red? (5/11) (1/2) (6/11) (3/5)

If tam walks 2 miles to school during gym and runs 3 times as fast as Dante how many miles would Dante go if he ran 1 mile