I have 60 coins, 30% are pennies, how many coins is not pennies

How do you divide big numbers? like for example, 2,673 : 486?

On Monday, a local hamburger shop sold a combined total of 504 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Monday?

Lifetime of a certain transistor in a certain application has a mean of 900 hours and a standard deviation of 30 hours. Four transistors are used, and the total length of time that the four resistors last is recorded.

It costs $x for four adults' tickets. A child's ticket costs $3 less than an adult's ticket. On family night, all the tickets go for half price.

Number or numbers is 2084 divisible by? A. 4 only B. 2 and 4 only C. 2 and 6 D. 2084 is prime E. 6 and 8

What is 11 increased by 12%

What's 624 divided by 27 showing the work?

The base of a parallelogram is 1.4 feet long, and the height is 0.32 feet. What is the area of the parallelogram?

What is the area of the larger triangle? __ square units

Nicole has a board 88 in. long. she needs to to cut it into filt a space 80 3/8 in long