The base of a solid right pyramid is a square with an edge length of n units. The height of the pyramid is n - 1 units
Which expression represents the volume of the pyramid?
okn(n − 1) units
© 3n(n - 1) units
• 1_n?(n − 1) units
1n3n - 1) units
/(n-1)

Write the sentence as an equation. b increased by 281 is d

What is the expression in factored form? -20x^2 - 12x a. 4x(5x+3) b. -4x(5x-3) c. -4(5x+3) d. -4x(5x+3)

Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?