360 tiles because you have to multiply 12x30.
Step-by-step explanation:
EXAMPLE OF SURFACE AREA
1/2 × (30×4) × 39 + (30×30)
= 60 × 39 + 900
= 2340 + 900
= 3240
A, because a pre-image means an image before its altered, and VSTU would be the image as a result of DEFG being transformed
Y : x
14 : 18
31 : x
18*31/14=x
39.85714286
ANSWER
x=39.86