How do I know if a question is true false or open

A scientist measured the length of a laboratory rat. It was 6.42 inches. The next time she measured it, the rat had grown to a length of 7.323 inches. How much did the length of the laboratory rat increase? A. 0.903 inches B. 1.103 inches C. 6.

Evaluate |3 - 5 + 7|. -5 5 -15 15

Which is true about the degree of the sum and difference of the polynomials 36 y-27y - Tuý O O Both the sum and difference have a degree of 6. Both the sum and difference have a degree of 7.

What is the length of the shorter of the two chords shown? 13 units 16 units 18 units 19 units

What is the equivalent fraction of 50/7

Mary is 63.5 inches tall and her sister Tonya is 70 inches tall. Tonya wants to know how many inches taller she is than Mary. Which equation and solution can be used to solve this problem?

A school received a shipment of 4 boxes of paper. The school wants to split the paper equally among its 3 printers. How much paper should go to each printer?

Solve the formula for a, the acceleration due to gravity

Shelley is building a brick wall that needs to be 1.57 meters tall. So far, the wall is 1.54 meters tall, How much taller does the brick wall need to be? meters

Andre's garden has been infested by weeds. he noticed on the first day that there were 3 weeds and on the next day there were 50% more weeds. a. write an equation describing this situation b. find out how many weeds there are in the garden