Vincent's cell phone plan charges a $10.00 monthly access fee and $0.04 for each text message sent. Which expression below represents the total monthly charge Vincent will have to pay if he sends n text messages this month?

a. 10.00 + 0.04 + n

b. 10.00 + 0.04n

c. 10.00n + 0.04

d. (10.00 + 0.04)n

Which linear equations have an infinite number of solutions? check all that apply.  (x  –  3/7)  =  2/7(3/2x  –  9/14)8(x  +  2)  =  5x  –  1412.3x  –  18  =  3(–6  +  4.1x)(6x  +  10)  =  7(x  –  2)4.2x  –  3.5  =  2.1 (5x  +  8)

Can someone check if i did this correct. it’s number 4 if you’re wondering.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?