Step-by-step explanation:
Because 2x and 40° are complementary angles.

F(x)=34x-84 ............................
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Answer:</h2><h2>Inflation chart or graph could be used to indicate a greater increase in monthly gas prices</h2>
Step-by-step explanation:
Inflation is a quantitative measure of the rate at which the average price level of a basket of selected goods and services in an economy increases over some period of time.
Inflation chart is ususally used to inflation of a product which can be represented in terms of peecentage of inflation or inflation in product rate,
To indicate a greater increase in monthly gas prices, inflation chart can be used for gtaphical representation with month's name in X axis and the gas price in Y axis.