Question

maths homework please help me ​

Answer 1

Answer:

1) x+520= 905

905-520=385

2) 280,000

3) 30

4)

Answer 2

Answer:

                      Here you go mate........

Step-by-step explanation:

1 ) 905 - 520 = 385

      Ans : 385

2 ) 7 x 40000 = 280000

      Ans : 280000

3 ) ( 6 x 5 ) + 8 - 8 = 30 + 8 - 8

                             = 30 + 0 = 30

      Ans : 30

4 ) 7 is the Constant .

     x is the Variable .

5 ) 9 = 3 x 3

    18 = 3 x 3 x 2

H.C.F = 3 x 3

          = 9

      Ans : H.C.F = 9

6 ) 4 = 4 x 2 = 8                                                                                                                .     5      5 x 2      10

So , 4/5 is equivalent to 8 / 10

      Ans : Yes

7 ) 500 mg + 700 mg = 1200 mg

      Ans : 1200 mg

Hope it was helpful.

Please Rate , Thank , Mark my answer as Brainliest if you think I deserve it.