How many more passengers can sit on for 777 aircraft stand on for 767 aircraft

Use the quadratic formula to write a quadratic equation that has the solution x=-9+-√137/4

A set of 7 numbers has a mean of 12. What additional number must be included in this set to create a new set with a mean that is 3 more than the mean of the original set?

A handyman knows from experience that his 29-foot ladder rests in its most stable position when the distance of its base from a wall is 1 foot farther than the height it reaches up the wall.

Simplify 7 - (-12) - 5

If p and q are both false, then p→q is true false

Katya is 15 years old, which is 5/6 of her brother's age. How old is her brother?

Complete the square so that the left side of x2 + 8x - 3 = 0 becomes a binomial squared.

The numerators of any rational roots of a polynomial will be factors of the what?

What is 12-9*3*4+3 in three different ways

What is the combined land area of the countries A and B is 154,973 square kilometers. Country A is larger by 573 square kilometers. Determine the land area of each country