Answer:
44.1 mm^2
Step-by-step explanation:
The formula for a trapezoid is 1/2(b1 + b2)h
A= 1/2(12.5 + 8.5) 4.2
= 1/2x21x4.2
=44.1
Answer:
35 students
Step-by-step explanation:
70% of 50 = 0.7×50 = 35
Answer: X= 20/9
Step-by-step explanation: X equals 20 over 9