Find the value of x (equation)

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h