heyy, can anyone help me in algebra 1? i'm in 8th grade. its functions, scientific notation, pythagorean theorem, ect. you must have some type of social media: (ig, disc, snap, ect).

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?

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.