Write the missing numbers so that 2a + 5b = 30

2a + 5b = 30 when a=0 and b= 6

2a + 5b = 30 when a=5 and b=

2a + 5b =30 when a=15 and b=

i really have no clue on how to do this and i need the answer really quickly!

On 2. 2 times 5 equals 10 so be equals 4 because 5 times 4 equals 20 and 20 plus 10 equals 30 and on 3 2 times 15 equals 30 so be equals 0

2-B equals 4
3-B equals 0

48x^7y^3. the app is photomath

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.