Cathy pays $25 a month plus $0.05 per text message. she models this with the function c = 0.05x + 25. if the text messaging fee increases to $0.10, what is her new function?
a) c = 10x + 25
b) c = 0.10x + 25
c) c = 0.10x + 0.05
d) c = 0.05x + 0.10

B. C = .10x + 25

Step-by-step explanation: If the original equation uses .05, and that equation is .05x + 25 = C, then increasing it to .10 would mean that the new equation is .10x + 25.

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%