Can someone please answer these questions!

For number one A we need to multiply 5x5 because exponents make you multiply the base number by the exponent the ammount of times the exponest value is. This would give is 25-6 which equals 19

number 1 B we need to add the 8 and the 3 to give us eleven over five. thats the simplest answer to this question

2a we need to multiply the 5 into the parenthesis

then we add. The answer would be 28

for 2b the answer would be 9 2/9

ill let you solve the rest. hope this helped. dont forget to leave a heart give it 5 stars and make it the brainliest answer!!