Sunny side middle school has ten sixth grade classes. two of the classes have both band and chorus. what percent of the sixth grade classes have both band and chorus?
a: 2%
b: 10%
c: 20%
d: 40%

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

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)) =

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2