A tabletop in the shape of a trapezoid has an area of 8,820 square centimeters. Its longer base measures 135 centimeters, and the shorter base is 105 centimeters. What is the height?

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?