To convert square feet to square yards divide 9 by the number of square feet (I remember that since there are 3 feet in 1 yard and 9 is 3 squared) so 90/9=10. Multiply the 10 sq yds by the price per sq yd: 10x11=120. It would cost $120 :) I hope this helps :)
Answer:
348
Step-by-step explanation:
A=2(wl+hl+hw)=
2·(8·9+6·9+6·8)=348
if ∡a and ∡b are complementary angles, that simply means that ∡a + ∡b = 90°.