Lisa and John work in different department stores. Lisa earns
a salary of $18,000 per year plus a 2% commission on her sales. John
receives no salary but earns a 6% commission on his sales. For each
person, tell whether annual sales and annual earnings show direct
variation. Justify your answers mathematically. Please show your steps.

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

The annual snowfall in a town has a mean of 38 inches and a standard deviation of 10 inches. last year there were 63 inches of snow. find the number of standard deviations from the mean that is, rounded to two decimal places. 0.44 standard deviations below the mean 2.50 standard deviations below the mean 0.44 standard deviations above the mean 2.50 standard deviations above the mean

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?