The measure of one of the interior angles of a parallelogram is 30° less than twice the measure of another interior angle of the parallelogram what is the measure of each angle?

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Why is x= 4 a solution to the proportion 14/x 56/1 6

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?