The ratio of girls to boys in the grade is 6 to 8. If there are 120 girls, how many boys are there?

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Three times the sum of a number and seven is negative thirty-six. what is the number?

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