Ivanna takes classes at both Westside Community College and Pinewood Community College. At Westside, class fees are $98 per credit hour, and at Pinewood, class fees are $115 per credit hour. Ivanna is taking a combined total of 20 credit hours at the two schools.
Suppose that she is taking w credit hours at Westside. Write an expression for the combined total dollar amount she paid for her class fees.
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Question

Ivanna takes classes at both Westside Community College and Pinewood Community College. At Westside, class fees are $98 per credit hour, and at Pinewood, class fees are $115 per credit hour. Ivanna is taking a combined total of 20 credit hours at the two schools.
Suppose that she is taking w credit hours at Westside. Write an expression for the combined total dollar amount she paid for her class fees. 
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vocaloid · Answer

Ivanna's taking 20 total credit hours. she is taking w hours at Westside, so she must be taking (20-w) credit hours at Pinewood

the cost of the Westside classes is 98w
and the cost of the Pinewood classes is 115(20-w)

so our total is 98w + 115(20-w)

anonymous · Answer

will you help me with one more?

vocaloid · Answer

sure