Here are the first five terms of a sequence 0 2 6 12 20

find an expression, in terms of n, for the nth term of this sequence

n²-n

Step-by-step explanation:

for example for the second term

2²=4

4-2=2 and so it works

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

what level of math? also i don't need to be paid if i can you.