I am old, so I like to use paper & pencil
Answer:
80
Step-by-step explanation:
Square meters to square centimeters metric area units conversion factor 10000. To find out how many square centimeters in sq. meters, please use the converter below.
1 Sq. Meter = 10 000 Sq. Centimeters
Sq. meter is an area unit in metric system and used widely in measuring the small lands, floor plans etc. It equals to 10.7639104 sq. feet. The abbreviations are "m2" or "sq m".
Sq. centimeter is an area unit in metric system and defined as the area of a square whose sides are exactly one centimeter in length. It equals to 0.15500031 sq. inch. The abbreviations are "cm2" and "sq cm".
Please let me know if you need additional help in private messages.
Thanks,
-GeVontae The BRAINLY Team.
Step-by-step explanation: For - 3 1/2 you would place between the -4 and -3 in the middle
The other one I don't know because I can't see the denominator but if you tell me I could
Answer: 
Step-by-step explanation:
Given
from the figure
![\angle HIE=\angle GIF\quad [\text{vertically opposite angles}]\\\angle HID+\angle DIE=\angle GIF\\15^{\circ}+(18x)^{\circ}-2^{\circ}=103^{\circ}\\(18x)^{\circ}=103^{\circ}-13^{\circ}\\\\x=\dfrac{90^{\circ}}{18}\\\\x=5^{\circ}](https://tex.z-dn.net/?f=%5Cangle%20HIE%3D%5Cangle%20GIF%5Cquad%20%5B%5Ctext%7Bvertically%20opposite%20angles%7D%5D%5C%5C%5Cangle%20HID%2B%5Cangle%20DIE%3D%5Cangle%20GIF%5C%5C15%5E%7B%5Ccirc%7D%2B%2818x%29%5E%7B%5Ccirc%7D-2%5E%7B%5Ccirc%7D%3D103%5E%7B%5Ccirc%7D%5C%5C%2818x%29%5E%7B%5Ccirc%7D%3D103%5E%7B%5Ccirc%7D-13%5E%7B%5Ccirc%7D%5C%5C%5C%5Cx%3D%5Cdfrac%7B90%5E%7B%5Ccirc%7D%7D%7B18%7D%5C%5C%5C%5Cx%3D5%5E%7B%5Ccirc%7D)
