7+7÷7+7×7-7=a:00 c:08b:50 d:56

7 + 7 ÷ 7 + 7 × 7 – 7

= 7 + 1 + 49 – 7

= 8 + 42

= 50 (B)

7+7÷7+7×7-7

7+1+49-7

8+42

= 50 B)