Work out the value of (3√9)^3 x (√30)^2?

19 - 7.25 = 11.75  so you do not have the cost of the notebook in there

(0.50p) + 2.75  ≤ 11.75  <-- is your inequality

How to solve the the inequality

First you need to subtract 2.75 from both sides.

0.5p + 2.75 − 2.75 ≤ 11.75 − 2.75 to get...

0.5p ≤ 9

Then you need to divide both sides by 0.5.

0.5p divided by 0.5 ≤ 9 divided by 0.5 and then you would have...

p ≤ 18