The perimeter of the new m-phone is 16 inches. The phones length is 5.25 inches. What is the width of the phone
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since the graph has direct variation as data in x axis increases y also increases.
so we need to find how many miles travelled per galloon .
we distance travelled per gallon =total distance travelled/galoons of fuel used.
for part b) slope=rise/run
slope of the graph is 2