Someone please help me. why is this problem what it is i already know the answer its c but im confused as to why it is c please explain
The figure is a semicircle.

What is the exact perimeter of the figure?

22π

cm
22π+22
cm
11π+22
cm
11π+11
cm

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

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)) =

When a valve is open 281 gallons of water go through it in one hour the number of gallons that would go through in 94 hours is