Given that quadrilateral PQRS is a parallelogram, how can you prove that it is also a rectangle? A. Use the distance formula to find the length of both diagonals to see if they are congruent.
B. Find the slopes of all sides to determine if the angles are right angles.
C. Both A and B are valid.
D. None of these.

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.