Zach tried to solve an equation step by step. \begin{aligned} \dfrac34&=z-\dfrac12 \dfrac34+\dfrac12&=z-\dfrac12+\ dfrac12&\green{\text{Step } 1} \dfrac54&=z&\blue{\text{Ste p } 2} \end{aligned} 4 3 4 3 + 2 1 4 5 =z− 2 1 =z− 2 1 + 2 1 =z Step 1 Step 2

es una operación aritmética.

step-by-step explanation:

no se que fórmula requiera, pero te puedo decir que es adición. deberías revisar porque tema vas y ver que fórmulas puedes aplicar.

the answer to your question a or b but i am pretty sure it is b. i hope this : )

step-by-step explanation:

the answer is. -82562234434584

step-by-step explanation:

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney