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!

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.