Final answer:
The expression given includes typos (GĐ, Gb); after correcting these to 0, the calculation provides a decimal form of 2074, which is not present in the provided options.
Step-by-step explanation:
The student is asking to convert the algebraic expression 7x10+4×1+6xGĐ+9xGb+2x(1000) into decimal form. This expression appears to include a couple of typos or irrelevant parts ('GĐ', 'Gb'), as these are not standard numerical or algebraic terms. Assuming the question meant to ask about the decimal form of 7x10+4x1+9x0+2x(1000) (replacing 'GĐ' and 'Gb' with 0 as they don't have a clear mathematical meaning), the answer can be found by performing the simple arithmetic operations.
7x10 = 70
4x1 = 4
9x0 = 0
2x(1000) = 2000
Adding these results together yields: 70 + 4 + 0 + 2000 = 2074. Therefore, the decimal form is 2074, which is not listed in the original options provided by the student.