PLEASEEEE help me on 3 4 & 5. it’s due before midnight

See below

Step-by-step explanation:

When changing from scientific notation to standard, you want to look at the exponent.

If exponent is positive, move decimal that many times to the right.

If negative, move to the left.

7.875 x 10^4

Exponent is positive so move to the right.

78750

4.53 x 10^-4

Exponent is negative so move to the left.

0.000453

8.9 x 10^-7

Exponent is negative so move to the left

.00000089

1.The graph of y > 3x − 4 has shading above a dashed line.

2.The graphs of the inequalities will intersect.

Step-by-step explanation:

Which statements are true about the graph of the system of linear inequalities? Select two options.

y > 3x – 4

y < x + 1

The graph of y > 3x − 4 has shading above a dashed line.

The graph of y < x + 1 has shading below a dashed line.

The graphs of the inequalities will intersect.

There are no solutions to the system.

The graphs of the two inequalities intersect the y-axis at (0, 1) and (0, 4).