Please help it’s in the picture

see explanation

Step-by-step explanation:

When 2 chords intersect then the product of the parts of one chord is equal to the product of the parts of the other chord, that is

4x = 16 × 7 = 112 ( divide both sides by 4 )

x = 28

Thus

diameter = LK = 4 + 28 = 32 cm

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step-by-step explanation:

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