Answer:
10b +13 +18a
Step-by-step explanation:
The perimeter of a triangle= Sum of the length of all sides
Therefore,
Perimeter = (10a +9) + (8a - 3) + (10b + 7)
= 10a +8a +10b + 9+7-3
= 18a + 10b + 13
Answer:
m=-4
Step-by-step explanation:
M-9=-13
+9 +9
M=-4
Hope it helps :)
B or D so sorry these ones are confusing written like this.
Gave a lovely weekend.
Answer:
266973954.2
Step-by-step explanation:
(400 ×5×6×900)÷(1267×12×5×87×6)
=10800000÷39682440
=266973954.2
