What must be added to ‐213 to get ‐312

The area of a rectangle is 15+5y square feet. which of the following expressions could be the length of the sides of the rectangle, in feet a. 5 and 3y b. 5 and 3+y c. 5 and 5+y d. 3 and 5+3y

How do you write a paragraph proof to prove that the corresponding angles shown are congruent

How can you check that you have correctly converted frequencies to relative frequencies?