As the demand for goods in (A) / Western economies come down, (B) / the region needs to look deeper (C) / within to grow markets and increase trade.(D) / No error. (E)
Replace COME with COMES. Demand is a singular noun and thus will use singular verb.
33 × 5 - ?% of 250 = 62 - 6
108² + 99 X 98² =?
...5/2 of 5/6 of 12/5 of 54 % of 5250 = ?
125% of 80 – 6 × 4 = ? × 13 – 54
360 × 9 ÷ 3 + 120 + 900 ÷ 5 = ?
140% of 9/8 of ? = 108% of 2800
10% of 80% of 50% of ? = 4
`sqrt(7744)` - `sqrt(4761)` + `sqrt(8281)` + `sqrt(5625)` + ? = 1856
1428 ÷ 17 = ? % of 120