Determine whether it’s sometimes true, always true, or never true, An absolute value function of the form f(x) = |x + a| + b has exactly one y-intercept.

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?