Last week: arnold purchased 3 apples for $3.90. this week he purchased 5 apples for $6.50. arnold analyze the price of apples.

Can someone me and do the problem plz so i can understand it more better

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Write the component forms of vectors u and v, shown in the graph, and find v − 2u. u= (< -3, -2> , < -3, -1> , < -2, -2> , < -2, -1> ) v= (< -5, 1> , -4, 0> , < 0, -4> , < 1, -5> ) v-2u= (< 5, 3> , < 0, 4> , < 4, 0> , < 5, -3>