Factor. Check by multiplying. 12 + 20b

A bacterial culture is known to grow at a rate proportional to the amount present after 1 hour, 1000 strands of the bacteria are observed in the culture, and after 4 hours, 3000 strands.

What is the y-intercept of y=5x-1y=5x-1?

Multiples of 2,3,4,6,9,10 and 5

Round 3817773 to the nearest 100000

What are the factors of the polynomial function? Use the rational root theorem to determine the factors. f (x) = 2x³ + x² - 8x - 4.

45.701 in expanded form

Mitch Watt is single, claims 4 allowances, and earns $587.94 gross pay each week. If each allowance is $63.46, how much is his taxable income?

A basketball team sells tickets that cost$10,$20, $30 the team has sold 3322 tickets overall. It has sold 191 more $20 tickets than $10 tickets. The total sales are 64, 180. How many tickets of each kind have been sold

A patrolman spends three times as many hours patrolling as she does completing paper work. If she works 36 hours per week, how many hours does she spend patrolling?

If a sample of 100 cars has 87 with grey interiors, how many in a second sample of 220 cars should have grey interiors?