Mr. Dufensmirtz is creating this year's final exam for his Precalculus students. Last year's exam had 10 multiple choice questions and 7 open response questions. This
year he would like the ratio of multiple choice to open response questions to be 4:1.
How many more multiple choice questions does Mr. Dufensmirtz need to add to last
year's exam to achieve the desired ratio?
PLEASE EXPLAIN HOW!!those are the options below pls and ty

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.