Answer:
Step-by-step explanation:
3*U/E = T Multiply both sides by E
3*U*E / E = T*E Combine
3U = TE Divide by 3
U = TE/3
That is your answer. You cannot come to any numerical answer because you do not know the values for T and E
right answer
B)
P= 30 cm
Formula for Rectangle Perimeter P=2(l+w)
P=2(10+5)
P=2(15)
P=30