The interest on an investment varies directly as the rate of interest. If the interest is $43 when the interest rate is 5%, find the interest when the rate is 7.8%.

i dont know

step-by-step explanation:

8(4)^8=72^feet to say that the total can conclude to 8(4) which as you know would mean 8 x 4. that equals 32w. 32^ could make a 72 answer as well. but your coefficent will remain w so your answer is 72w.

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