Please help ;—;

(a) i and ii: 2b-2 = b+b-2

(b) i and iii: c+d = d+c

(c) ii and iii: a + 2b - 1 = a+b-1+b

(d) i and iii: x+(y-z) = x-(z-y)

(e) ii and iii: (a-1)² = (1-a)²

(f) i and ii: 3a-b-1-1 = 3a+b-2-2b

Step-by-step explanation:

let me know if you require detailed explanation for any of them.

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.

welll its a very hard question but ill

step-by-step explanation:

first you take the 6 dollars and add 10 to it then add the 50 to that then multiply by 8 with xy and your answer will be

hope this