Tell my where to insert a pair of parentheses somewhere in this sentence. mary realized after thinking for a whole minute that she had left her wallet at the park.

Mary realized (after thinking for a whole minute) that she had left her wallet at the park.

The reason they go right there is because parenthesis are for inserting an idea that doesn't necessarily need to be there. If you took the parenthesis out with the words, the sentence would still make sense.

Mary realized that she had left her wallet at the park.

it is about the use of non animal tested cosmetics.

the maximum speed limit is 55 mph on a two-lane undivided highway and for vehicles towing trailers.