Answer:
D. 35x+111y
add the X’s together and then add the Y’s!
X = total amount of people
80% of x = 540
.8x = 540
x = 675
There were 675 people
<u><em>MARK BRAINLIEST</em></u>
Answer:
No
Step-by-step explanation:
A triangle is valid if sum of its two sides is greater than the third side. If three sides are a, b and c, then three conditions should be met. 1+2<5
given,
height of triangle(h)=3.5 in.
base of triangle (b)=4 in.
length of side of triangle(s)= 4 in.
length of prism(l)=9 in.
we have,
surface area of traingular prism( A)=bh+2ls+lb
=4×3.5+2×9×4+9×4
=14+72+36
=122 square inches
