Which equation represents the statement: Three times the sum of a number and 5 is -30 a.3n+5=30
b. n+15=-30
c.3(n+5)=-30
d.(n+5)/3=-30

In which form is the following function written? y = - 2(x – 3)(x + 5)

Hurry if the population of of an ant hill doubles every 10 days and there are currently 100 ants living in the ant hill what will the ant population be in 20 days

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?