Determine whether b is in Span { a1, a2} (that means whether b can be written as a linear combination of a1 and a2.) In other words, determine whether weights x1 and x2 exist, such that x1 a1 + x2 a2 =b. Determine the weights x1 and x2 if they exist. If not, state the reason.

Amaple syrup producer records th amount of sap collected from each of his trees. the line plot shows the results for one day. what is the least amount of sap any one tree produced?

Someone answer this asap rn for ! a discount store’s prices are 25% lower than department store prices. the function c(x) = 0.75x can be used to determine the cost c, in dollars, of an item, where x is the department store price, in dollars. if the item has not sold in one month, the discount store takes an additional 20% off the discounted price and an additional $5 off the total purchase. the function d(y) = 0.80y - 5 can be used to find d, the cost, in dollars, of an item that has not been sold for a month, where y is the discount store price, in dollars. create a function d(c(x)) that represents the final price of an item when a costumer buys an item that has been in the discount store for a month. d(c(x)) =

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points