I need help please with this

2-digit numbers less than 91 which are 1 less than a multiple of 10

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?

Question 6(multiple choice worth 5 points) (05.02 lc) what is the value of x? a right angle is shown divided into two parts. the measure of one part of the right angle is 10 degrees. the measure of the other part is 2x 20 40 45 85