Ok can someone help me do this one

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?