book Maths Puzzle Numerical Ability

suppose that f(x)=ax+b if (f(x))=8x+21 then what is a+b

Read Solution (Total 0)

book Other Question

An orange has 20 fewer calories than a banana. If 7 bananas have the same number of calories as 9 oranges, how many calories are in a banana? Please help. I need the graph to this question. If anyone could help show me a graph I would appreciate it.
2) The volume of a cylinder (think about the volume of a can) is given