Question

Another Math problem!!!!!

Answer 1

Answer:

40%

Step-by-step explanation:

Percentage increased=Amount increased/Amount before increasing*100

Percentage increased=120/300*100

Percentage increased=40%

Answer 2

Answer:

A

Step-by-step explanation:

Equation

300 ( 1 + x) = 420

Explanation

You start with 300. What fractional amount do you need to increase the original amount up to 420

Solution

Divide both sides by 300

300(1 + x)/300 = 420/300

1 + x = 1.4    

Subtract 1 from both sides.

1 - 1 + x = 1.4 - 1

x = 0.4

But as a percent this number is 0.4 * 100 = 40%

Answer

40% which is A