Solve the rational equation: 2x/x-4 - 2x-5/x^2-10x+24 = -3/x-6 a. x= 6.08, x= -0.58
b. x=4, x=6
c. x=-0.64, x= 1.44
d. there is no solution

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

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?

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?