Wot da answers IM STUPID HELP ME PEEPS PLZ ITS DUE 2 DAY HEALP HOOMANS ∧ ∧ UwU
⊂ ⊃
∪ ∪

For #2

−1(4−3)

=(−1)(1)

=−1

Number 3 is

4(−2+8)

=(4)(6)

=24

Number 4

5(−12−1)

=(5)(−13)

=−65

Number 5

−(12−7)

=−5

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

answer is c

step-by-step explanation:

81/12=324/x

x=48