Iknow the answer now is 540 after 3 hours of trying to figure out the "least common multiple" but what does the 3rd number "10" serve purpose? because who would want to keep adding 10 mutiple times to get to 540? am i missing something here? i also matched 108 for both numbers but not "10" and it was incorrect, is there a glitch on this quiz? or is it really 540 since you have to match 3 numbers?

The water has been on the stove y=9.5x+62.1 after how many minutes will the tempature be 138.1 f

Ineed with number 6 , explain how to get 1978

Someone answer asap 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)) =