A coat cost $39.99 at Walmart. The sales tax is 4.5%. What is the total amount of the sales tax? Options:
1. $1.80
2. $38.19
3. $41.79
4. $44.49

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)?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x -4 0 for x? cos -3+ v (3) 2-4() 2(5) 3+ |(3)² +4() 205) 3+ (3) 2-4() -3+ v (3)² +4()