Look at the pentagonal numbers. Use finite differences
to determine which function represents the pattern.
f(x) = 1.5x + 0.5x
f(x) = 1.5x2 + 1.5x
f(x) = 1.5x2 + 0.5x
f(x) = 0.5x2 +0.5x

Divide. write in simplest form 41/6 divided by 10

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?