The ratio of boys to girls on a school trip was 5: 7 there were 56 girls how many boys were on the school trip

Marlow is comparing the prices of two trucks rental compaines company a charges $3 per hour and an addtional $75 as serivce charges company b charges $2 per hour and an additional $85 as serivce charges

Hi, can anyone show me how to do this problem? 100 points for this. in advance

The domain of a function can be represented by which one of the following options? o a. a set of output values o b. a set of f(x) values o c. a set of input values o d. a set of both input and output values