Please help! I will mark Brainliest. Use the expression 9(7 + 2x) to answer the following:

Part A: Describe the two factors in this expression.

Part B: How many terms are in each factor of this expression?

Part C: What is the coefficient of the variable term?

What properties allow transformation to be used as a problem solving tool

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.