Step-by-step explanation:
20a + 158+6c=you will expand the brackets
= so it is 120+60+48
20a+158+6c=120+60+48
20a+ 6c=120+60+48-158
20a+6c=70
20a divide by 20+6c divide by 6 on both side
a + c = 0.58
The provided dimensions of the rectangle are, 75 m by 90 m. Formula used: The area of rectangle is length×breadth and 1 ha=10,000 m2.
Answer: False
Reason: It should be x-a instead of x+a