Which expression is equivalent to 4x^-2+3x^-5? A.7x^-7
B.12x^10
C.7
—
x^7
D.4x^3+3
————
x^5
E.4x^5+3
————
x^7

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

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?

Awoman has 14 different shirts: 10 white shirts and 4 red shirts. if she randomly chooses 2 shirts to take with her on vacation, then what is the probability that she will choose two white shirts? show your answer in fraction and percent, round to the nearest whole percent.