Answer:Based on the data in the problem condition, the answer is obtained:- The reading on the altimeter at point A was +450 meters.- The reading on the altimeter at point B was -50 meters.
The answer is in the image
y=2x+15
where y=Value of coin
x=Age in years
Value of coin after 19 years=2*19+15
=$53
Therefore, Value after 19 years=$53
The wood before starting =12 feet
Left wood=6 feet
Wood used till now=12-6=6 feet
Picture frame built till now= 6/(3/4)
=8 pieces
Therefore, till now 8 pieces have been made.
30% of 420 are first year students
first year students = (30/100 )*420
=126 students
Student who are not in first year = 420-126
=294 students
Decrease in bikes sale = 650 - 572 = 78
%Decrease = (change)/old value * 100
%Decrease in sale = 78/650 * 100 = 12%
Decrease in sale = 12%
Cost of tacos =$5.50
Cost of chips and salsa = $3.99
Total cost = 5.50 +3.99
=$9.49
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