Rolands family drove 4 6/10 kilometers from their home to the gas station. they drove 2 30/100 kilometers from the gas station to the store. which one is correct? a. 6+ 180/1000
b.4+2+36/110
c. 6 + 6/100+ 30/100
d. 4+2+ 60/100+30/100

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Angle that produces maximum distance

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