Samantha measured two of the angles in Triangle P Q R and found that they had measures of 65° and 70°. Then, she measured two of the angles in Triangle X Y Z and found that they had measures of 65° and 45°. What statement best describes the two triangles? The two triangles cannot be congruent because the angle measures are not the same. The two triangles are congruent because the angle measures in the two triangles are the same. The two triangles may be congruent, but additional information is needed about the third angle in each triangle. The two triangles may be congruent, but additional information is needed about the sides of each triangle.

The shelves will hold 270 books in total

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )