Answer:
$7.5
Explanation:
There are two ways to solve this:
1) First, write the equation:
150% of 5
Then calculate:

Finally, simplify 1 zero with the 0 in 15:
1.5 * 5
= $7.5
2) For the second way, because 150 is more than over 100 (percent), you deduct 150 and 100:
150 - 100 = 50
Then find 50% of 50:

Then cancel 1 zero in 100 with the zero in 50:
0.5 * 5
= 2.5
Finally, add the product with the original amount of Noah:
5 + 2.5
= $7.5