Final answer:
Options a, b, and c are equal to 750,000.
Step-by-step explanation:
To determine which expression(s) are equal to 750,000, we need to evaluate each option. Let's go through them one by one:
- a) 75 x 10³ = 75,000
- b) 7.5 x 10⁴ = 75,000
- c) 750 x 10² = 75,000
- d) 75 x 10⁵ = 7,500,000
From the options, only options a), b), and c) have a value of 75,000, which is equal to 750,000.