The number of calories in a hamburger varies directly with the hamburgers weight. If a quarter pound hamburger has 560 calories, how many calories does a half-pound hamburger have?

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.

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step-by-step explanation: