a rare coin was bought for $30.00 2 years ago. It is now worth $75.00. What is the percent increase in worth?

Archana has two pieces of ribbon. One of them is 180 cm long and the other is 255 cm long. Next, she cuts the two pieces of ribbon into small pieces such that all of these smaller pieces are of equal length and no ribbon is wasted.

Darian wants to build a regulation-size pool table that is 9 feet in length. The plans he ordered are 18 by 46 inche. What is the scale factor of the dilation he must use to build the regulation pool table.

Peter uses unit cubes to build a figure in the shape of letterX. What is the fewest unit cubes that Peter can use to build the figure

How do I do this? Calculate the number of protons and the number of neutrons for each of the below

Southeastern Oklahoma State University's business program has the facilities and faculty to handle an enrollment of 2 comma 100 new students per semester.

What is my number? Clue 1 My number is a multiple of 2 and 7. Clue 2 My number is less than 100 but greater than 50. Clue 3 My number is the product of three different prime numbers.

Using radians, find the amplitude and period of each function. 1) y = 1/2 * cos 2θ + 1 2) y = 1/9 * sin 4θ + 5

Find the given value of the function. 1 w (t) = 3t - 1; t = 3

Wes rode his bike 30 miles in 3 hours. What was his average rate of speed?

Simplify - 6+[4 - (*-2) ]