Answer:
Step-by-step explanation:
The answer could be:
1400x = xt
Where 1400 = the initial altitude
Where t = time ( per minute)
And where x equals a certain number.
Answer:
The second answer, Since each card is about $1, the total cost is approximately 3 × 1 =$3
Answer:

Step-by-step explanation:
1. Value of x
The diagonals of a rectangle are equal, so
PR = QS

2. Length of each diagonal
PR = 11x - 20 = 11×18 - 20 = 198 - 20 = 178
QS = x + 160 = 18 + 160 = 178
The length of each diagonal is 178.