An advertising agency creates magazine ads for customers. The cost for each ad is a basic fee of $500 plus $85 per square inch of advertising. In the space below, write an equation to find the total cost of an ad. Let c represent the total cost of an ad and n represent the number of square inches in the ad. If a customer wants 12 square inches of ad space, what will be the total cost of the ad?

a. is correct

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3