Hi . how u r doing good. pls help me with these questions , I really need help A) Divide the difference of 2/15, -16/20 by their product.

B) The product of two rational numbers is -3/7. If one of the number is 5/21, find the
other

C) Compute 9/5x -2/27+7/30

D) 5/7 – 2/3| + |3/14 – 5/7

Thank you :)

Which grade's question is this?

81 seats

step-by-step explanation:

if you multiply 0.65 times 125 then you get 81.5 seats. well since you can't have half of a seat you have to round down and get 81 seats in the no children zones. that leave 44 seats outside of the no children zone.

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)