Answer:

Step-by-step explanation:
Can you please take a better picture
From the given equation
105% * 90 = 200% * x
105/100 * 90 = 200/100 * x
105*90 = 200*x
x = 105*90/200
X = 21*9/4
X = 189/4
x = 47.25
Value of x = 47.25 or 47 1/4
Answer:
the sum is -4
Step-by-step explanation:
Q(-3,-3)
R(3,2)
S(5,2)
T(5,-4)