How do you write 4.5 × 102 in standard form?

Sandy is ordering bread rolls for her party,she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?