In developing the ways of calculating time, astronomers divided an hour into 60 minutes. Why is 60 a better choice than 59 or 61?

198 + 132=? make a ten or a hundred to add mentally

A bowl contains 4 yellow marbles and 3 red marbles. Michael randomly draws 4 marbles from the bowl. He replaces each marble after it is drawn. What is the probability that he draws 3 yellow marbles and 1 red marble. A. 12/35 B. 3/35 C. 192/2401 D.

Which situation can be represented by the equation 100-2 x=140-6?

What is the arc measure, in degrees, of minor arc AC ⌢ on circle P below?

Among all pairs of numbers whose difference is 88 , find a pair whose product is as small as possible. What is the minimum product?

Solve this system using substitution then write your answer as an ordered pair (x, y) X-5y=4 and Y=2x+14

Victoria read a 160-page historical fiction novel followed by a science fiction novel of the exact same length.

A rectangular auditorium seats 1564 people. The number of seats in each row exceeds the number of rows by 12. Find the number of seats in each row.

A bank charges $25/month plus $0.25/transaction for use of an ATM card. What is true about the function for this problem? a. the y intercept is 25 b. the y intercept is. 25 c. the equation is y = 0.25x + 25 d. the slope is 0.25 e. the slope is 25

Four more than twice a number is less than negative eighteen. Find all numbers that make this statement true.