Combine the like terms to create an equivalent expression: \large{2r+1+(-4r)+7}2r+1+(−4r)+72, r, plus, 1, plus, left parenthesis, minus, 4, r, right parenthesis, plus, 7

quit

step-by-step explanation:

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6

she will travel a distance in the range of 3 - 11 miles

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.