Matt is showing his work in simplifying (6.2 − 1.6) − 4.4 + 7.8. identify any error in his work or reasoning.

step 1: (6.2 − 1.6) − 4.4 + 7.8
step 2: 6.2 + (− 1.6 − 4.4) + 7.8 (commutative property)
step 3: 6.2 − 6 + 7.8
step 4: −14 − 6 = 8 (commutative property)
step 5: 14 − 6 = 8

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

Hello people, i have a math question that i need with, me, i will give the correct one brainiest, and for the other correct people, a and 5 stars.

Oscar and julie ashton are celebrating their 15th anniversary by having a reception hall. they have budgeted $4,500 for their reception. if the reception hall charges a $90 cleanup fee plus & 36 per person, find the greatest number of people that they may invite and still stay within their budget.