**Answer:**

Similar to SIN = 0

We show the partial 4y + 10 = 3x

just the same as we can say 3x-10 =4y

We could say (f)y= 1 and (f)x= -1 the actual function changes x to 10x and y to 10x its value and this can be expressed with a curly d that acts the same.

The notation is just replaced with f(x) and f(y)

**Step-by-step explanation:**

**Answer:**

71020

**Step-by-step explanation:**

6.88 x 10000 + 2.22 x 1000

move the decimals

68800 + 2220

71020

**Answer:**

Mark earns 12 dollars an hour, and Steven earns 15 dollars.

Mark earned 6*12=72 dollars, and Steven earned 15*5=75 dollars.

**Step-by-step explanation:**

Let's set Mark's salary as x.

Steven=x+3

Last Friday, Steven earned 5(x+3) dollars, while Mark earned 6x dollars.

We can write the sum of these salaries as:

5(x+3)+6x=147

5x+15+6x=147

11x+15=147

11x=132

x=12

Then, we can substitute x with 12.

**Mark earns 12 dollars an hour, and Steven earns 15 dollars.**

**Mark earned 6*12=72 dollars, and Steven earned 15*5=75 dollars. **

Given:

Height of triangular prism = 2 cm

triangular base of the prism = height = 5cm ; base 4cm

Base area = (5cm*4cm)/2 = 20cm² / 2 = 10cm²

Volume of triangular prism = base area * height

V = 10cm² * 2cm

**V = 20cm³**