Electronic equipment manufacturer dynamo electric, inc. makes several types of surge protectors. their base model surge protector has monthly fixed costs of $675. this particular model wholesales for $11 each and costs $6.50 per unit to manufacture. (a) write the function for dynamo's monthly total costs. c(x) = (b) write the function for dynamo's monthly total revenue. r(x) = (c) write the function for dynamo's monthly profit. p(x) = (d) find the number of this type of surge protector that dynamo must produce and sell each month to break even. surge protectors