Tonya wants to place an advertisement in a local newspaper to sell her car. This piece wise function shows the cost of the ad given that x equals the number of lines. If the advertisement she wants to place will be 7 lines, how much will the paper charge her?

(Step by step is preferred but not required)

Need this asap if anyone can i would be very grateful. if you could show workings that would really

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?

Acompany charges $0.10 for each letter engraved. bobby plans to spend no more than $5.00 on the engraving on a jewelry box. write and solve an inequality to find the maximum number of letters he can have engraved.