Answer:
$15.80
Step-by-step explanation:
First you multiply $1.40 times 3 to get $4.20 then you subtract the $4.20 from $20 to get $15.80
Answer:
-2.1
Step-by-step explanation:
Answer:
1,440
Step-by-step explanation:
a = 34
d = 38 - 34 = 4
S20 = (20/2)[2(34) + (20-1)(4)]
= 10(144)
1440
<h3>
Answer: x = 3</h3>
To get that answer, we replace y with 8 and then isolate x.
5x-7 = y
5x-7 = 8
5x = 8+7
5x = 15
x = 15/5
x = 3
