Given the function f (x) = 630(.64)x, determine if this function models exponential growth or decay and identify the growth or decay rate. 1. Decay, 64%
2. Growth, 64%
3. Decay, 36%
4. Growth, 36%

Fred has a total of 62 dvd and cd. if the number of cd is three more than two times the number of dvd, how many cd does he have?

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

The sum of two numbers is 86, and their difference is 20. find the two numbers