Kat just bought a new cell phone. The monthly plan will cost $49.00 per month, plus an additional $0.20 per megabyte for data. If she plans to use 80 megabytes of data each month and her parents will pay $10.00 of her
monthly bill, which expression should Kat use to find out how much she can expect to pay each month?
O 49 +20 x 80 + 10
O 49 + (0.20 x 80)
O 49 +0.20 + 80 - 10
O 49 + (0.20 x 80) - 10

Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e. g. 98.76543).

Rationalize the denominator- 12x/√x-10