9. Area of a triangle is proportional to height. If the height increases by a factor of 4, then ...
The area will increase by a factor of 4. . . . . (2nd selection)
10. The base lengths and height are needed:
• 5 mm
• 8 mm
• 10 mm
-25x is the slope
-42 is the y-intercept
3x9=27
21/3 = 7
so
7+27x9+5
27x9=243
243+7+5
answer is 255
Answer:

Step-by-step explanation:
The scientific notation:

We have:
