HURRY IM TAKING A QUIZ. Janine charges $8.25 per hour to walk dogs. She walks dogs for 3 hours on Saturday and 4 hours on Sunday. She calculates her total pay to be $57.75. Which equation could be used to check the reasonableness of her total? 8 × 7 = 56 9 × 7 = 63 10 × 7 = 70 8 × 10 = 80

Which of the following pairs of functions are inverses of each other? o a. f(x)=x72+8 and 96-9 = 7/x+2) =8 o b. f(x)= 6(x - 2)+3 and g(x) - *#2-3 o c. $4) = 5(2)-3 and 90- 4*: 73 o d. f(x) = 6)-12 and 910 – +12

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

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?