Answer: 
Step-by-step explanation:
<em>let's take the two given distances and add them together</em>
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<em>Now let's make give them a common denominator of 70</em>
<em>To do this we need to multiply </em>
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The amount of the element remaining (y) in grams after time (t) in minutes is defined by the equation y=970(1-.151)^t. Substitute t=14 into the equation and solve for y. y=970(.849)^14=98.06 rounded to two decimal places.
The answer is B.
Since it’s a negative x, the line should go down from left to right and cross the origin.
vertex form of a parabola
y= a(x-h)^2 +k
y =a(x--3)^2 +2
y = a(x+3)^2 +2
Choice B
