You are hiking on a trail that leads to the top of a mountain. at 1 p. m. you reach an elevation of 4400 feet. at 4 p. m. you reach an elevation of 5600 feet. what is your mean hourly change in elevation? the mean change in elevation is feet per hour.

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

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

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00