6. 2× =5

7. y +1.8=14.7

8. 6=1/2 z

9. 3 1/4=1/2 +w

10. 2.5t=10

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie