2. which answer is equivalent to "y less than 2 times 7"?
a. y-2.7
b. (y-2).7
c. 2.7-y
d. 2.(7 - y)

What is the value of y? round to the nearest tenth

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g