It should be d which is 45
10 feet 6 inches = 126 inches. Length of the car is 126 inches and the model length is 7 inches.
126 : 7 = 18
The scale factor of the model to the actual car is 1 : 18.
The temperature would be (21.5 + 6.25) which is 27.75
You can use the quadratic equation to solve this once you have this set equal to zero. The answers would be roughly 9.6 and -0.6.
3,7,11,15,19,23,27,31
32 = 8th term.
The common difference is +4
