Select the real-world problem that could be solved using a proportion. A Sheila has 3 pens and 7 pencils. How many more pens does she need to make the number of pens and pencils she has equivalent?

B Sheila has 2 dogs and adopts 2 more. How many dogs does she have in total?

C Sheila must pay $90 for a phone and then $30 each month for service. How much will she have paid after 7 months?

D Sheila travels 90 miles in 3 hours. At this rate, how far will she travel in 7 hours?

Phyllis and chen are saving money to go to a football game. each friend starts with some money and saves a specific amount each week. phyllis made a graph to show the total she has saved at the end of each week. chen wrote an equation to show the total, y, he has saved at the end of each week, x. y = 15x + 15 compare the amount that each friend has when both friends start saving. select the correct answer from the drop-down menu to complete the statement. phyllis starts with $ and chen starts with $

Which of the following parabolas opens down?

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.