If she got 9 messages last week and 3rimes as much this week then she got 27 messages because 9x3=27
Answer:
Choice B
Step-by-step explanation:
When two shapes are similar their sides are always going to be proportional. So here we will set up a proportion to solve this.

Now we cross multiply

After we got an equation we solve it

Since we got a decimal we will have to round it to the place they instruct for us, on this one it is 9.8 cm so it is choice b.
Okay so the equation. Lets say e is explorers and v is flying vs and m = money.
e + v > or = 30.
80e + 5v =m.
e < or = 20\
v < or = 20.
Okay, the most money he could make would be if he made 20 explorers at 80 dollars and 10 vs at 5 dollars.
Total money...
1600 + 50 = 1650.
So he could make $1650.
Let

be a rectangular

matrix with column vectors

, i.e.

Then we have

and the product of the two is

Because the columns of

are orthonormal, we have

which means

reduces to an

matrix with ones along the diagonal and zero everywhere else, i.e.

where

denotes the identity matrix. This means the solution to

is given by
Answer:
$17.227 -> $17.23
Step-by-step explanation:
$14.98 × 0.15 = $2.247
$14.98 + $2.247 = $17.227