A surveyor is measuring the height of a volcano. She measures the elevation of its base, at the bottom of the sea floor, at -16,400 feet. She measures the summit at an elevation of 13,680 feet. What is the total height of the volcano, from
the base to the summit?
0-30,080 feet
0 -2,720 feet
O 2,720 feet
0 29,720 feet
30,080 feet
Intro
Done

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

s

step-by-step explanation:

step-by-step explanation: