Question

1. Use three units multipliers to convert 1520 meters to feet.

2. Find the number that is 27 greater than twice the opposite of itself.
3. Write 420 as a product of prime.
4. 2\frac{2}{3} of what number?
5. If f(x)=-5-7x, find f(-2).
6. siplify: (a) -3^{2} (b)
`(1)/(-3^(-2) )`
7. Factor the greatest common factor of
`3a^(2)b^(3)c^(2) - 6a^(3)b^(2)c^(4)`

Answer 1

3

Explanation:

420=2x2x3x5x7

recall that 2,3,5,7 are all prime numbers