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

In the rectangle below ac=30 units what is de

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years