"<span>A= 1/2 h (a+b) solve for h"
</span>
bh + 1/2h
2х3+10х+2у2-х-у=2х3+9х+2у2-у=2*3in3+9*3+2*5in2-5=2*27+27+2*25-5=54+27+50-5=126
3.3
![6 \frac{7}{8} = \frac{55}{8}](https://tex.z-dn.net/?f=6%20%5Cfrac%7B7%7D%7B8%7D%20%3D%20%5Cfrac%7B55%7D%7B8%7D%20)
-1/8 - 55/8 = -56/8 = -7
3.4
(-4x7)/10 = -28/10 = -14/5
3.5
-19/2 ÷ 38/7 <=> -19/2 x 7/38 and simplify = -7/4
Answer:
D (210)
Step-by-step explanation:
120 times 1.75 equals 210