Answer:
90 times 3 is 270
270- 71 ( the average grade you have now)= 199
the 2 more report card average grade has to add up to 199 for you to get a 90.
B? I am confused.
Step-by-step explanation:
for this case we have to define trigonometric relations of rectangular triangles, that the tangent of an angle is given by the leg opposite the angle on the leg adjacent to the angle. So: