Answer:
x=-8.5
Step-by-step explanation:
3a + 3b-2c-2d
a= number of hearts
b= number of diamons
c= number of clubs
d= number of spades
if you draw 3hearts, 2 diamonds, and 1 spade, just replace a=3, b=2, c=0, d=1
3(3) + 3(2)-2(0)-2(1)
Multiply each term and add the results:
9+6-0-2 = 13
13 points
Let
x-----> the purchase price of the house
we know that
1) Marika paid 
of the purchase price of the house with a loan
2) Marika paid the remaining 
of the purchase price with her savings
3) represent the 
of the purchase price
so
Solve for x
Divide by 
both sides
therefore
<u>the answer is</u>
the purchase price of the house is 
One with 40cm being the side, 70 diagonal and 80 as the base so it is a right angle triangle
Y=-x+8
gradient of the parallel line is the same as the gradient of the line given, which is -1
to find the y-intercept, sub the values (9,-1) into the equation we are finding which is y=-x+c
