She can order 11 burgers and 5 orders of fries
The numerical expression that represents the total number is parentheses 15 divided by 3 plus parentheses 30 divided by 5
There's 12 months in a year so if the value decreases by 6% each year that would be 6 ÷ 12 which is 0.5%. Therefore the decay each month is -0.5%.
