Answer:
Step-by-step explanation:


80 x 4 = 79+81+77+x
320=237 + x
320-237 = x
83=x
so Marianne must score 83 points or higher on her last test
Answer:



[since in third quadrant cos 30=-![\frac{\sqrt{3}}{2}]](https://tex.z-dn.net/?f=%20%5Cfrac%7B%5Csqrt%7B3%7D%7D%7B2%7D%5D)

:150°or 
<u>150°</u><u>or</u><u> </u>
<u>is</u><u> </u><u>a</u><u> </u><u>required</u><u> </u><u>answer</u><u>.</u>
Answer: B
Hope this helps!!
Answer:
x=17
Step-by-step explanation:
53+(2x+3)=90
Answer:
Step-by-step explanation:
you have to add up all the sides if you want the sum of ur area.