exam Maths Puzzle Numerical Ability

The length of a rectangle is fixed at 10cm. What widths will make the perimeter greater than 88cm?

The width must be greater than _______ cm.

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exam Other Question

Please show me how to solve each inequality, giving its solution set in both interval and graph forms and check the answer? thanks!

5Z - 6 / 8 < 8 -6>4y
8-u>4
5w>-6w+11
6y-7<-2y+13
|2h+1|<5
-10<4q<12
5(-2+b)<3b+2
10k<75and4-k<0
0.5(x+3)-2.1>-1