Carlos wants to have an average of at least 90% on his tests for semester 1. So far he has scored: 95%, 87%,
and 88%. What is the minimum he must get on the next
test to maintain the 90% average?

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

Ineeeeed this is due tomorrow and i dont know the answer can you find all the exponents

Graph the equation. select integers for x