#1 Solve the equation.
5(2 x + 3) − 8 x = 10 + 2 x − 3
#2 After 6 months the simple interest earned annually on an investment of $5000 was $907. Find the interest rate to the nearest tenth of a percent.
#3 A computer was purchased for $550. The wholesale cost was $440. What percentage was the markup?
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