Which expressions are equivalent to 4(4a+5)?
a) 16a+5
b) 16a+20
c)12a+20+4a
d)2(8a+10)
e)16a+5+4
choose three answers

Step-by-step explanation:

Make use of the Distributive Property of Multiplication:

4(4a+5) = 16a + 20 (b)

        or  = 12a + 20 + 4a (note that 12a + 4a + 20 = 16a + 20   (c)

2(8a + 10) = 16 a + 20 (d)

3: 2

step-by-step explanation:

shorter piece is 2: 3, so just reverse it, and you get 3: 2

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.