If the first term of a sequence is four and the common difference is -9. Find a40. (Write your answer as a value without spaces ex. 678, -973, etc.)​

What is the value of x? enter your answer in the box. photo attached.

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Someone answer this check out the image!