The admission fee at a fair is $1.50 for children and $4 for adults. on a certain day, 2050 people enter the fair and $4700 is collected. a. write a system of linear equations that you can use to determine how many children and adults attended. be sure to define your variables. b. solve the system.

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

What is the solution to the equation below? 3/x-2+6=square root x-2 +8

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables