In a family with 7 children, excluding multiple births, what is the probability of having exactly 2 girls? Assume that having a boy is as likely as having a girl at each birth.

Without computing each sum, find which is greater O or E, and by how much. O=1+3+5+7 + ... + 97 E=4+6+8+10 + ... + 100

What is 6 - (-3) 6 - (-3)

Solve for a 7 а - 26 = 5 а + ь

The cost of granola varies directly with its weight. Granola cost $0.80 for 8 ounces. Write an equation to find how much any weight of granola would cost. how much does 26 ounces of granola cost?

Two plans for reaching a goal are given below plan a say $450 over the next eight weeks by working hours per week at $7.20 per hours Plan B save $450 over the next 6 weeks by working 15 hours per week at $6.

Scores on exam are normally distributed with a mean of 45 and standard deviation of 8 1. what is the probability that the score of a student will be higher than 52.6? 2. what proportion of the students score below 43? 3.

What is the exact area of a circle with a diameter of 44 ft? answers on bottom

A dime weighs 1/12 ounce Jody has 1 pound of dimes about many dimes does she have?

Which expression is equivalent to - 13 (6x+15) - 3

Determine all the zeros of m (x) = x² - 4x + 3, algebraically