7. Andy's Rental Car service charges an initial fee of $20 plus an additional fee of $50 per day to rent a car Buddy's Rental Car charges an initial fee of $60 plus an
additional fee of $30 per day Write and solve an equation to determine the number
of days for the cost of the two companies to be the same,
A. 20x + 50 = 60x + 30
B. 80 - 80x
C. 20 + 50x = 60 + 30x
D. 70x90

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.

Having a hard time understanding this question (see attachment).

He graph of f(x) = |x| is stretched by a factor of 0.3 and translated down 4 units. which statement about the domain and range of each function is correct? the range of the transformed function and the parent function are both all real numbers greater than or equal to 4. the domain of the transformed function is all real numbers and is, therefore, different from that of the parent function. the range of the transformed function is all real numbers greater than or equal to 0 and is, therefore, different from that of the parent function. the domain of the transformed function and the parent function are both all real numbers.