Tanner walks north at 2.5 mph with a receiver and sheldon walks east at 3 mph with a receiver. how long will they be able to talk to each other if the range of communications range is 4 miles

If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y