There is no picture but ok
Answer:
m-(nx)
Step-by-step explanation:
He starts with <em>m</em> dollars, and every day spends <em>n</em> so you would multiply <em>n</em> and <em>x</em> to figure out how much he spent over how many days.
Since (78-23) is in the bracket, you need to perform the operation of minus first.
that get you with
-56x(55)÷4
and then you just do it step by step
-56x55 = -3080
-3080÷4 = -770
