Given these equations x+y=9.0

0.50x+0.20y=4.05
what are the values of x and y

Which two transformations are applied to pentagon abcde to create a'b'c'd'e'? (4 points) translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the x-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the y-axis translated according to the rule (x, y) ? (x + 8, y + 2) and reflected across the y-axis translated according to the rule (x, y) ? (x + 2, y + 8) and reflected across the x-axis

Which of the following graphs could represent a cubic function?

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3