resolver las siguientes operaciones combinadas con signos de agrupación. c(-7+4[-3-(3+9)]}(-12÷(-5+(-1)]} d -12+(-65÷5-3+(-4÷(8÷4)-3(12÷4)]-6​

step-by-step explanation:

your mom

i think it might be a but you might want a second opinion

id

step-by-step explanation:

idk

idk

i know the way

and

idk

7.25

step-by-step explanation:

we know that 7 equals to 7.0. we also know that 1/4=0.25. so we can add the two together and we get 7.25