Tell whether each addition problem has a sum greater the 1/2.
1. 4/10+9/100 yes or no
2. 1/100+5/10 yes or no
3. 45/100+1/10 yes or no
4. 25/100+3/10 yes or no
5. 3/10+15/100 yes or no

You have $600,000 saved for retirement. your account earns 5.5% interest. how much, to the nearest dollar, will you be able to pull out each month, if you want to be able to take withdrawals for 20 years?

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Find the solution of this system of equation -7x+y=-20 9x-3y=36