18. © mp.2 reasoning in exercise 17, what
number represents the whole class? how
do you know what fraction to use to
represent this number?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

Solve the equation: x - 9 = -6 + 5 a. 21 b. 7 c. 14 d. 2