# math

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teemu's t-shirts designs and manufactures t-shirts for a \$15 flat design rate and \$7.50 for each t-shirt.he wants to sell his t-shirts to the senior class for their graduation party. he is going to charge them \$10 for each t-shirt.

write a function,c, representing the cost of,t,t-shirts.

write a function,I, representing the income that teemu

• math -

Cost(t) = 7.5t + 15

Income(t) = 10t - 7.5t - 15
= 2.5t - 15

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