Question

please answer question with step-by-step explanations

Answer 1

Answer:

1. a)-11

b) 3/7

c)D=S-(a+3)

Step-by-step explanation:

•4+3×-5

=4+(-15)

= -11

•35 = 12+3×d

35 = 15 × d

d= 15/35

= 3/7

•let S=1

A=2

1=(2+3)×d

d=1-(2+3)

d=1-5

d=-4