Pens and pencils are sold in a shop. 12 pencils cost f1.80
The ratio of the cost of a pen to the cost of a pencil is 7:3
Work out the cost of 5
pens.

we know that

applying the law of sines

°

so

∠j=18°

∠k=29°

∠l=180-(18+29)=133°

the answer part a) is

the measure of angle k is  ≈29°

part b)  the measure of angle k could also be

(180-29)=151°

so

∠j=18°

∠k=151°

∠l=180-(18+151)=11°

the answer part b) is

the measure of angle k could also be 151°

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answer

a the answer hopes this

step-by-step explanation:

15 units use socratic

step-by-step explanation: 15 units

i can't solve unless i know what the line is

step-by-step explanation:

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