Allison's car holds 15 gallons of gas. on a long trip, she fills the tank completely twice. the first time it costs $2.50 a gallon. if she spends a total of $76.50 on gas, how much did gas cost per gallon for the second tank? a. $2.60 b. $2.50 c. $5.10 d. $2.80

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.