What is the scale of the number line ? Hint: the number line has 3 spaces between 21 and 0. please help me

Marcus built a model car that is 4 inches wide. what scale was used to build the car if the actual width of the car is 6 feet? a. 1 in. = 2 ftb. 1 in. = 2.5 ftc. 1 in. = 1.5 ftd. 1 ft = 1.5 in.

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?