Me ayudan por favor con estos ejercicios de álgebra con la 15, 16 y 17

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

Select the graph of the solution. click until the correct graph appears. |x| = 3

Identify the percent of change as an increase or a decrease. 75 people to 25 people response - correct increase decrease question 2 find the percent of change. round to the nearest tenth of a percent.