Find the volume of the triangular pyramid to the nearest whole number. a) 679 in3 b) 906 in3 c) 1,359 in3 d) 2,717 in3

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

What is the number 321,000,000 in scientific notation? also what is the number? ?

Multiply. write your answer in simplest form. 3/8 x 5/7