What is the expression and value of "six less than the quotient of a number and two increased by ten" when n. 8? O 6+ 10; when n = 8, the value is 8.

O 6-5 +10; when n=8, the value is 12.

O 6+ 10 when n = 8, the value is 11,

O 6-%+ 10; when n = 8, the value is 9.

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?

(c) a vine called the mile-a-minute weed is known for growing at a very fast rate. it can grow up to 0.5 ft per day. how fast in inches per hour can the mile-a-minute weed grow up to? show your work using the correct conversion factors.