A bag of potatoes has a mass of 4 kilograms. Some potatoes are taken out. The mass is now 2305 grams. What is the mass of the potatoes in grams that were taken out of the bag?

What is the slope of 18x-15y=20?

A class of 25 student has 15 girls and 10 boys. If one student is chosen at random, what is the probability it is a girl

Jasmine spent an hour cleaning the house. She spent 25 minutes cleaning the bathroom, 20 minutes doing laundry and the rest of the time she spent cleaning the kitchen. What percent of the time did she spend cleaning the kitchen?]

The length of country and western songs is normally distributed and has a mean of 200seconds and a standard deviation of 25 seconds. Find the probability that a randomselection of 9 songs will have mean length of 188.58 seconds or less.

The value of a collector's item is expected to increase exponentially each year. The item is purchases for $500 and its value increases at a rate of 5% per year. Find the value of the item after 4 years.

Quadratic equation whose roots are 6 and 4, and whose leading coefficient is 5.

How many numbers less than 1000 are divisible by 7?

What shape has 4 equal sides. and sometimes has 4 right angles

Together, selina and pam have 132 stamps. selina's collection has 34 more stamps than pams collection how many stamps does pam have

This morning, Bobby had $50 in his wallet. Then he got $40 in babysitting money. Which integer represents how much money is in Bobby's wallet now?