What is the nth term in the arithmetic sequence when the sequence is:
6,10,14,18
(i need the expression)

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28