Marco jumped rope for 20 more seconds than Troy. The letter r represents the number of seconds that Troy jumped rope. Which expression shows the number of seconds that Marco jumped rope?

A. r divided by 20

B. r plus 20

C. r minus 20

D. r20

Each marble bag sold by Lisa's marble company contains 3 purple marbles for every 2 green marbles. If a bag has 18 green marbles, how many purple marbles does it contain

Greg practiced playing his clarinet for 12 minutes. He has practiced 40% of the amount of time he needs to practice today. How many more minutes does Greg need to practice today?

To find the sum of 174 + 328, do you need to regroup once or twice? explain.

Ali bounces a ball while Tim counts. Tim counts 11 tens and 2 ones. How many bounces did Tim count?

Is 36.948516 closer to 36.9 or 37

Which of the following describes the location of the opposite of the number that R represents on this line?

The distance from city A to city B is 3 times father than the distance between city B and city C. The total distance from city A to city B to city C is 50 miles. How far is it from city A to city B?

Which statements describe the function f (x) = 2x+24/x^2+4x-96? Check all that apply. f (x) has a vertical asymptote at x = 8. f (x) has a vertical asymptote at x = 12. f (x) has a hole at x = - 12. f (x) has a horizontal asymptote at y = 0.

Which estimate of 7/10*16 uses a benchmark fractions? A. 1 x 16 = 16 B. 7/10 x 20 = 14 C. 3/4 x 16 = 12 D. 7/10 x 10 7

Which number is a rational number? √25 √32 √50 √63