Answer:
1. It is symmetric
2. The second diagonal is the counting numbers
3. Any number in the triangle is the sum of the two numbers directly above it
Step-by-step explanation:
1. The first diagonal shows the counting numbers.
2. The sums of the rows give the powers of 2.
3. Each row gives the digits of the powers of 11
So try to isolate a by division and such
K=4a+9ab
we use reverse dstributive which is ab+ac=a(b+c) so
undistribute a
4a+9ab=a(4+9b)
k=a(4+9b)
divide both sides by (4+9b)

=a
a=
It's the amount of money that he earns for every lawn.
8 months; $740
75x+140=90x+20
Find x then plug it in to find the cost
Answer:
2, and 5
Step-by-step explanation:
. V = B( h )
. V = (pi) (r squared) (h)