If the perimeter of a square with an area of 25cm^2, then the answer is 20cm
You can add up all the equal terms:
So for x: 6x-4x = 2x
For y: 2y
For the numbers: 3+7=10
Answer:
10
Step-by-step explanation:
because 10% of 100 is equal to ten
Answer:
the second one
Step-by-step explanation:
Answer: 1,278
Step-by-step explanation: 2(18x18)+2 1/2(18x14)
p.e.m.d.a.s. 18x18= 324 18x14= 252
2x324= 648 2.5x252=630
648+630 =1,278
