Which of the following are possible explicit formulas for the nth term of the constant-velocity sequence below? 10, 16, 22, 28,

choices=
a. xn = 6(n - 1)
b. xn = xn-1 + 6
c. this one doesnt appear
d. xn = 4 + 6n
e. xn = 10 + 6(n - 1)

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered

If there are 3.281 feet in 1 meter, how many inches are in one centimeter