Based on a recent study, the pH level of the arterial cord (one vessel in the umbilical cord) is normally distributed with mean and standard deviation of . Find the percentage of preterm infants who have the following arterial cord pH levels. a. pH levels between and . b. pH levels over .

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?

Factor the expression using gcf 9b+45