PLEASE HELPP ILL GIVE YOU BRAINLIEST!!

1) 23a + 18

2) 23a - 6

3) 23a - 18

4) -16

5) 7a - 6

Step-by-step explanation:

Use the distributive property (if it is subtraction remember to distribute the negative sign as well)

1) 3(5a + 2) + 4(2a + 3) = (15a + 6) + (8a + 12) = 23a + 18

2) 3(5a + 2) + 4(2a - 3) = (15a + 6) + (8a - 12) = 23a - 6

3) 3(5a - 2) + 4(2a - 3) = (15a - 6) + (8a - 12) = 23a - 18

4) 3(5a - 2) - 5(3a - 2) = (15a - 6) - (15a +10) = 15a - 6 - 15a - 10 = -16

5) 3(5a + 2) - 4(2a + 3) = (15a + 6) - (8a + 12) = 15a + 6 - 8a - 12 = 7a - 6

Try doing the rest :)

step-by-step explanation:

i am not sure sorry : c

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents