A student has to sell 2 books from a collection of 6 maths, 7 science, and 4 economics books. How many choices are possible if
1.1) both books are to be on the same subject?
1.2) the books are to be on different subjects?

What is the simplified expression for 6(2(y+x))

Divide: 1573 ÷ 7 = a) 222 r5 b) 223 r6 c) 224 r5 d) 224 r3

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1