Scientists use the system of to write very large or very small numbers. a. numbers b. scientific notation c. standards d. metrics

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,