Su is wrapping presents. She uses red paper (R) or blue paper (B) to wrap the presents with.

She also uses ribbon; gold (G), silver (S) or purple (P).

Each present has 1 colour of paper and 1 colour of ribbon.

Su starts to list all of the possible combinations of paper and ribbon that she can have when wrapping the presents.

(R, G), (R, S) …

3× __ -2=15 7 2× __+1=7 5 7× =22 15 5× __+10=2 8 × __+4=20 6 × =10 3 × __+2=8 6 × __+8=8 9 × __+7=20 6

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)