exam Maths Puzzle Numerical Ability

3. The linear equation

y= 0.15+ 0.79

represents an estimate of the average cost of gas for year x starting in 1997. The year 1997 would be represented by x = 1, for example,

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exam Other Question

Can someone help me solve for rate and round to the nearest tenth percent as needed? I know that rate= portion/base.

1. -----of 80 is 50

2.0.9 is-----of 2.25

Thanks How many ways can a president, vice president , and secretary be chosen from a club with only 3 members