Answer:
2a+6
Step-by-step explanation:
you distribute the 2 to the variable A and number 3. since a variable and a constant cant be combined, your left with 2a+3
Answer:
648 sq units
Step-by-step explanation:
Area of the base= 12×12= 144 sq. units
Perimeter of the base=4×12= 48
Total surface area= 1/2×48×21 + 144
=648 sq units
20x + 15y = 2000
x + y = 115
55+60=115
20 (55) + 15 (60)=2000
1100+900=2000
2000=2000
The answer to the question is A
