Factor the expression r^2+19rs+90s^2

A: (r+3s) (r+30s)

B: (r+3) (r+30s^2)

C: (r+10s) (r+9s)

D: (r+10) (r+9s^2)

A company makes cars at two factories. Some of the cars need repairs in the first year and some do not. This two-way frequency table shows the proportion of cars at each factory that need repairs or do not need repairs in the first year.

Which equation represents "the product of a number and 24 is 72"

X+13/2=4 what x equal

There are 50 students in the fifth grade at clark school one day 20% of them were absent how many fifth graders were in school that day show how. you firgued out your answer

What is - 3/4 * - 8?

The temperture in the rink must stay below 50 degrees Fahrenheit ... This morning the temperature was 71 degrees Fahrenheit. The ice rink runs a cooling device, that can decrease the temperature by 3.5 degrees every hour.

Your brother traveled 117miles in2.25 hours to come home for school break. What's the average speed that he was traveling

Marlis has 765 cards in her baseball collection. she sells 153 of cards. What is the percent of decrease in the number of cards in the collection?

399+428 make a ten or hundred to add mentally

A vehicle is traveling at a rate of 80 kilometers per hour. How many miles per hour is this?