For $7.90, you purchased 8 items (pens and highlighters) from a local bookstore. Each highlighter cost $1.09 and each pen cost $.68. Write a system of equations that can be used to find how many of each you bought. A. 8p+8h=7.90 and 1.09+.68h=7.90

B. h+p=8 and .68h+ 1.09p=7.90

C. p+h=7.90 and .68p+1.09h=8

D. h+p= and 1.09h+.68=7.90

D, i believe it should be h+p=8 and 1.09h + 0.68p = 7.90

Step-by-step explanation:

purchased 8 items in total; therefore, h+p=8

cost of each item, multiplied by quantity, equals grand total of $7.90

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°

read more on -

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.