Perform the indicated operation. (3a2 - 7xy) (3a2 + 7xy)

Find the standard form of the equation of the parabola with a focus at (0, - 9) and a directrix y = 9.

Write the number in scientific notation 79,200,000

If p = 19, what is 365: (p-14) ?

a. The U. S. Postal Service will accept a box for domestic shipment only if the sum of its length and girth (distance around) does not exceed 108 in. What dimensions will give a box with a square end the largest possible volume? b.

Using only odd numbers for numerators, write two different subtraction problems that have a difference of 1/2.

Simplify. -6 (-3 + 5s) b) How did you simplify this expression?

What is 28% of 14,350

Evaluate the expression when y=-7. y? + 4y-1

Brian has one and 7/10 kilograms of black pepper he uses 7/8 of the pepper and split sit between seven pepper shakers how much pepper will be in each shaker

of 100 people in a concert 24 are teachers the rest are students what is thepercent of students in the concert