A granite block in the shape of a right rectangular
prism has dimensions 30 centimeters by
40 centimeters by 50 centimeters. The block has a
density of 2.8 grams per cubic centimeter. What is
the mass of the block, in grams? (Density is mass
per unit volume.)

Step-by-step explanation:

$15 each

step-by-step explanation:

$45/3 children= $15 each

answer is 8x+24

area of vanessa's patio = length × width

given, length = (3x² + 5x + 10)

width = (x² - 3x - 1)

area of vanessa's patio = (3x² + 5x + 10)(x² - 3x - 1)

= 3x²(x² - 3x - 1) + 5x(x² - 3x - 1) + 10(x² - 3x - 1)

= 3x⁴ - 9x³ - 3x² + 5x³ - 15x² - 5x + 10x² - 30x - 10

= 3x⁴ - 4x³ - 8x² - 35x - 10

hence, expression of vanessa's patio = (3x⁴ - 4x³ - 8x² - 35x - 10)