Answer:
area of trapezium=1/2 ×20(38+18)=560cm²
Step-by-step explanation:
2+3.25=5.25 or 5 1/4 cups of flour total
8q=30+3q
5q=30
q=6
x=1
if it is truly 9^(x-1)=27^(x-1), then you dont really need to use the quadratic fromula.