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Maths Puzzle
Numerical Ability
Hoe do I solve this problem?
4 / a - 5 - 1 / 5 - a
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connie has $10 to buy doughtnuts and coffee. she needs to buy coffee,whitch is $3.50, and will spend the rest on doughnuts. if the doughnuts are $0.40 each, what is the maximum number of doughnuts she can buy?
I am unclear as how to do this thanks for any help.
Graph the solution set of x < -4.