Drew painted his uncle's barn on saturday. it took him 4 hours to paint the whole barn, and his uncle paid him 60 dollars for his work. what was drew's pay rate, in dollars per hour?

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Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me