Answer:
-5xa^2-7a^3+7a^2+4
Step-by-step explanation:
The scale is a representation of what the drawing is to real life. The drawing will tend to be represented by a fixed figure such as 1 cm. In this case for every cm of drawing it is a representation of 8 millimetres in real life, therefore the drawing is bigger than the object.
A factor of 20 but not a multiple of 5 would probably be 4
90 dimes = $9 because 10 dimes = $1
By knowing the volume of a triangle and that the triangle has all equal sides
