Question

Which expressions are equivalent to
7
−
8
? Select two that apply.

A.
(
7
−
4
)
−
4

B.
1
7
−
8

C.
7
2
7
16

D.
(
7
0
⋅
7
8
)
−
1

E.
7
−
10
⋅
7
2

Answer 1

I can confirm (7 − 4) − 4 = 3 − 4 = −1, so A is correct. The other choices as printed are ambiguous (spacing makes it unclear whether they are exponents, fractions, concatenated digits, etc.), so I can’t be sure which one equals −1.

Please retype B–E using clear notation (use ^ for exponents, / for fractions, and parentheses as needed). For example:
- 1^7 − 8
- 17 − 8
- 7^2 ÷ 7^16
- (7^0 * 7^8) − 1
- 7 − 10 * 7^2

If you retype them I’ll evaluate each and pick the two that equal 7 − 8 (−1).