What is the value of (–7 + 3i) + (2 – 6i)? a. –9 – 3i
b. –9 + 9i
c. –5 + 9i
d. –5 – 3i

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?