Answer:
42
Step-by-step explanation:
New value =
30 + Percentage increase =
30 + (40% × 30) =
30 + 40% × 30 =
(1 + 40%) × 30 =
(100% + 40%) × 30 =
140% × 30 =
140 ÷ 100 × 30 =
140 × 30 ÷ 100 =
4,200 ÷ 100 =
