What is x + 4z -5 - 3x, when x = 2 and z=3x? A 15 B 17 C 23 D 26

(2)+4(3*2)-5-3(2)

2+4(6)-5-6

2+24-5-6

26-5-6

26-11

A. 15

15

Step-by-step explanation:

2+4x3x2-5-3x2

2+24-5-6

2+13

15

answer: i believe its b. if you sound out the sentences that sounds wrong.

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2