Please answer this question now

61.8 sq.cm

Step-by-step explanation:

surface area of triangular pyramid is given by

A=bh+L (s1+s2+s3)

A=3 (2.6)+6 (3+3+3)=61.8 sq.cm

0.85 or 85%

step-by-step explanation:

1) divide 23 by 27

2) round the decimal to the nearest 10

3) so your answer would be 0.85 or 85%

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.