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Betty has some marbles. John has 17 more marbles than Betty. Debbie has three times as many marbles as John and Betty combined. If the teacher confiscated all the marbles, how many marbles would the teacher have?
n + (n + 17) + 3n
n + (n + 17) + 3(n + n + 17)
n + (n + 17) + 3(n + 17)
Which expression represents the following? Rebecca 3 years younger than twice the age of her sister
2s + 3
2s - 3
Compare 1/3 + 1/4 ____ 5/12 + 1/6
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Compare 1/8 + 1/2 ____ 2/7 + 1/3
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A recipe for one dozen cookies calls for 0.4 cups of sugar. How many dozens of cookies will you be able to make with 5.3 cups of sugar?