13: multiply the amount by the tax rate (to make a percent a decimal move the decimal point 2 places to the left) and add the original amount and the taxed amount together. For 12 do above but then multiply the total by the tip rate and add together (basically the same as the tax again) :) I hope this helps
Answer:
x=30
Step-by-step explanation:
because 3 times 30 equal 90 minus 5 is 85
C. 110. This is because all triangles add up to equal 180*. So you add the two angles you have and subtract from 180.
Step-by-step explanation:
X=-14
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