Step-by-step explanation:
First you have to convert each number to improper fractions.
Next you have to multiply denominator to denominator, and fraction to fraction.
Then simplify your final answer to the lowest form possible.
Hope this helps :)
84.5 would be the answer if rounded to the nearest tenth
Since Christi earns $21 per hour, to find how much she earns by working 19 hours per week we need to multiply the hourly wage by the number of hours she works in a week:

Her weekly wage is $399
Answer: D) $399
1. 15+37=?
- 15=10+5 (given on the diagram)
- 37=30+7 (given on the diagram)
- add digits to digits 5+7=12=10+2
- add tens to tens 10+30+10=50
- add tens and digits 50+2=52.
2. 22+49=?
- 22=20+2 (given on the diagram)
- 49=40+9 (given on the diagram)
- add digits to digits 2+9=11=10+1
- add tens to tens 20+40+10=70
- add tens and digits 70+1=71.
3. 38+26=?
- 38=30+8 (given on the diagram)
- 26=20+6 (given on the diagram)
- add digits to digits 8+6=14=10+4
- add tens to tens 30+20+10=60
- add tens and digits 60+4=64.
Answer: 1) 52; 2) 71; 3) 64.
Menjawab:
15cm
Penjelasan langkah demi langkah:
Keliling segitiga adalah jumlah semua sisi segitiga
P = s1 + s2 + s3
Diberikan sisi jika segitiga;
S1 = 5cm
S2 = 7cm
S3 = 3cm
Keliling = 5cm + 7cm + 3cm
Keliling = 15cm
Oleh karena itu, keliling segitiga tersebut adalah 15 cm