With the following:
1. for what value(s) of "r" is 3r-6=7+3r
a) all real numbers
b)all negative numbers
c)0
d) no values of r

2. what is the range of f(x)=[[x-1]]?
a)all reals
b)all integers
c)all real > or = 1
d)all integers > or = 1

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

Answer soon(fast) 15 pts-brainliest? for right answer with small explination a restaurant catered a party for 40 people. a child’s dinner (c) cost $11 and an adult’s dinner (a) cost $20. the total cost of the dinner was $728. how many children and adults were at the party? use the table to guess and check.(i couldn't get the graph onto the question)                                8 children and 32 adults9 children and 31 adults10 children and 30 adults12 children and 28 adults

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling