Answer:
15
Step-by-step explanation:
3 2/4+ 2 3/4+ 2 3/4+ 2 1/4+ 1 1/4+ 1
first add the whole numbers so 3+2+2+2+1+2=12
then we are left with the fractions. 11/4 divides into 2 with a remainder of three so we add it to the top.
From here we have 2/4+3/4+3/4+1/4+3/4
add them together and we get 12/4=3. Then add back our whole numbes to get 12+3=15
The first one is (v+6)(v-6)
A square is a geometrical figure that has 4 congruent sides and angles. This means all side lengths and angles are the same.
A rectangle is a geometrical figure that has 4 similar sides but are not the same length. However, a rectangle does have congruent angles. A rectangle has 2 sides that are double the other 2 sides, in which both of each (length & width) have the same measurement.
I hope this helps!