Step-by-step explanation:
y=90-41= 49°
For x
7x+13+2x-9+41=180
9x +45=180
9x=135
x=15
Answer: $5.50
Step-by-step explanation: If the cost for a collect call is $1.50 for the first minute and then $1.00 for each additional minute the cost is $1.50 (first minute) + $4.00 (last four minutes).
Answer:
b. 
Step-by-step explanation:
The given geometric series is;

The first term of this series is

The common ratio is

The sum to infinity of this series is

Substitute the given values to obtain;

This implies that;


Let's solve your equation step-by-step.
Step 1: Add 5 to both sides.


Step 2: Solve Exponent to get.
d = −4.054522 or -4.05 hope this helps