Please help will give 20 points

x = 126

each ( x - 30 ) equals 96 degrees

Step-by-step explanation:

Since a pentagon's angles all equal 540 degrees, you can set up the equation like so:

x - 30 + x - 30 + x - 30 + x + x=540

Combine like terms:

5x - 90 = 540

Add 90 to each side:

5x = 630

Divide each side by 5:

x = 126

Substitute into the equation to solve:

x - 30

126 - 30

96

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

a sample of water is taken and kept in a beaker in a freezer at a constant temperature of 0°c. if the system is at dynamic equilibrium, which of these statements is true?