-y= 4x + 1 -2y- 6x =6
a. substitution; (2,9)
b. elimination using multiplication; (0, 2)
C. substitution; (2. - 9)
d. elimination using multiplication; (-9, 2)

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.

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

Item 1 solve for s. s+24=90 −114 −66 66 114