A car began a trip with a full tank of gas. During the first half of the trip, the car used 0.30 of the gas. During the last half of the trip, the car used 0.40 of the tank. What portion of a tank of gas is left when the trip is complete? A. 1/4

B. 3/10

C. 50%

D. 0.75

With this question! what is process of elimination? ? p.s. my brothers acc got banned so add his new one @ yamauchiyamyam17

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π