In order to maintain a healthy weight, an average adult dog that weighs 21 kilograms must consume 11 grams of dog food per kilogram of its body weight each day. A specialty pet store sells dog food by the cup, where 4 cups of dog food weighs 356 grams. About how many cups of dog food should the dog consume each day in order to maintain a healthy weight?

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629

d is ur answer hopes this i dont really know how to explain it to u.

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i think the answer is b. i hope i !