Answer:
x=21, y= 35
Step-by-step explanation:
3x+7=5x-35
(subtract seven from -35)
3x=5x-42
(subtract 5 from 3)
-2x=-42
(-42/-2= positive number)
x=21
y+75=3y+5
(subtract 75 from 5)
y=3y-70
(subtract 3y from y)
-2y=-70
y=35
Answer:

Step-by-step explanation:
F(x)=1/3•4^x
f(3) = 1/3•4^3 = 64 / 3 = 
Answer:
$6
Step-by-step explanation:
$15.50 is $3.50 more than $12. And $12 is twice $6. The cost of the screwdriver is $6.
J/4 - 8 < 4
×4 ×4
j - 8 < 16
+8 +8
j < 24
Answer:
$842
Step-by-step explanation:
The Total amount after a compound interest can be calculated using the formula:
where P is the <em>amount of deposit</em>, R is the <em>rate of interest</em>, n is the <em>duration</em>.
Hence by substituting the values, we get:

<u>T = $842 (3 sf)</u>