Reading "Music Theory for Guitar An Introduction to the Essentials"

I try to do the intervals exercises

I am pretty sure these are two errors

![Text](https://i.postimg.cc/59k3m3FG/image.png)

- it should be M7 not m7
  it is a full 7 interval with no modification, so **major**

- it should be m2 not 2+
  the sharp reduces the interval, so + makes no sense

otherwise then I just don't get it

any help from the pros ? thanks for taking time to explaining where/if I am wrong

![Text](https://i.postimg.cc/TP8NJcBG/image.png)