a diver descends at a rate of 12 feet per minute. at this rate, where will the diver be in relation to the surface after 4 minutes?
a. -48 ft.
b. 58 ft.
c. -16 ft.
d. 3 ft.

A. -48 ft.

Explanation:

The rate of change is given as 12 feet per minute. This can be represented as -12t, where t represents time, in minutes. Plug in 4 to -12t for t and you get -12 x 4 = -48.

1. it was caused by feudalism

2. charlemagne used christianity as a major cornerstone for his rule. cloisters were built all over the empire to act as centers for the (re)population of the vast european wilderness.

3. the europeans feared the next raid every time chetak

i'm not so sure about #6. but i hope i you with the first 3.