Solve the system of equations and choose the correct answer from the list of options.
d + e = 15
–d + e = –5
label the ordered pair as (d, e). (4 points)
select one:
a. (0, 0)
b. (10, –5)
c. (5, 10)
d. (10, 5)

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?