If twice a number is less than the number, the number must be a) negative b) even c) 0.5 d) a square

a) negative

Step-by-step explanation:

When you multiply a given negative number by a positive number, the result becomes smaller than the original.

For instance let be the original number.

Multiply by 2.

The result is -200

We know

The correct answer is A.

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

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.