One hundred 50 cent coins have a mass of 690g. What is the mass of one 50 cent coin?

Isaac read a total of 20 books over 5 months. After belonging to the book club for 7 months, how many books will Isaac have read in all? Assume the relationship is directly proportional. (easy question i just forgot how to do it lol)

Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 60 miles per hour. Then, in the second hour, she traveled at a speed of 73 miles per hour.

F (x) = x³ - x² + x + 5; if f (5)

How many 6s are there in 285

Which measure is equivalent to 65 kilograms? 6.5 g 650 g 6500 g 65,000 g

What is the equation of slope=-8/5, y intercept = 4

Select the correct answer. Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation? A. 4.2E6 B. 4.2E-6 C. 42E6 D. 4.2E5 E. 4.2E-5

Kip is going to meet his family. Predict the number of kilometers that will remain after 7 hours. The table shows the number of kilometers he needs to travel until he reaches them. Enter the correct answer.

What is the main reason the US civil war was started

How do you show 2+3i is a root of x^2-4x+13