1- No one is allowed to miss a farz prayer purposefully, because of any excuse, there is literally no valid excuse for this. Even in war, farz prayer is not delayed. Specially because of this excuse.
The Prophet (peace and blessings of Allaah be upon him) said:
“The earth has been made for me a place of prayer and purification, so
whenever the time of prayer comes for any man of my ummah, let him
pray.” Narrated by al-Bukhari, 335; Muslim, 521
And its upto you what you prefer
“Men whom neither trade nor sale (business) diverts from the
remembrance of Allaah (with heart and tongue) nor from performing
As‑Salaah (Iqaamat‑as‑Salaah) nor from giving the Zakaah. They fear a
Day when hearts and eyes will be overturned (out of the horror of the
torment of the Day of Resurrection).
That Allaah may reward them according to the best of their deeds, and
add even more for them out of His Grace. And Allaah provides without
measure to whom He wills”
2- If you have your prayers missed unpurposefully), like you forgot, or was travelling on something you couldn't pray on(this one is a disputed matter among scholars though) etc. Than you will remake your missed prayers as usual. Which is better to make them in order, but not necessary, and remake them as soon as possible. And if you had missed them purposefully you also need to repent to Allah and ask for forgiveness.
Also have a look on this question and answer.
Allah knows best