Please help me! Simplify each ratio. Write the simplified version in the same form of the ratio.

3 to 6
5:20
18 to 22
1820
2555
6 to 42
18 to 10
12 to 4
16:8
24 to 16
18 to 36
54 to 9
81:27
72 to 9
1812

Find the value of the variable and the length of each secant segment.

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)) =

The trigonometric ratios sine and secant are reciprocals of each other