Which ordered pairs lie on the graph of the exponential equation f(x)=128(0.5)^x? select each correct answer. (0, 1) (1, 64) (3, 16) (8, 0.5)

What is the value of x? enter your answer in the box. (cm)

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Your client has saved $1,860 for a down payment on a house. a government loan program requires a down payment equal to 3% of the loan amount. what is the largest loan amount that your client could receive with this program