In 2009, a diabetic express company charged $37.75 for a vial of type A insulin and $30.49 for a vial of type B insulin. If a total of $1393.84 was collected for 40 vials of insulin, how many vials of each type were sold?

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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

Which of the following are arithmetic sequences? check all that apply. a. 0.3, 0.6, 0.9, 1.2, 1.5, b. 2, 3, 6, 11, 18, c. 150, 147, 144, 142, d. 2, 4, 9, 16, 25,