Steve has 7 biscuits in a tin. There are 4 digestive and 3 chocolate biscuits.
Steve takes two biscuits at random from the tin.
Work out the probability that he chooses two different types of biscuits?

Reagan lives five miles farther from school than vanessa lives. write an expression to describe how far reagan lives from school

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319

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