A building that is 300 m tall casts a 270 m
shadow. At the same
time, a different building
casts an 90 m shadow.
How tall is the building?

10m

Step-by-step explanation:

we can use the cross multiply method.

300m = 270m

x m = 90m

270x = 300 x 90

270x = 2700

x = 10

so the buliding is 10m tall

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8