Answer:
Jewel is 7 years old
John is 1 year old
Dave is 17 years old
Step-by-step explanation:
From the question we are told that:
Jewel age is 
John age 
Dave's age a Year ago

So that Dave.s age this Year could be

Simplifying Equation for Dave's age we have





Dave is 17 years old
Therefore
Johns age is



John is 1 year old
The right answer is Option D.
Step-by-step explanation:
Boxes of ice cream received = 50
Ice-creams in each box = 12
Total ice-cream bars = No. of boxes * Ice cream bars in each box
Total ice-cream bars = 
No. of people who had ice cream bars = 520
Ice-cream bars left = Total ice cream bars - No. of people who had ice cream
Ice cream bars left = 
80 ice cream bars were left.
The right answer is Option D.
Keywords: multiplication, subtraction
Learn more about subtraction at:
#LearnwithBrainly
Answer:
21/4 or 5.25
Step-by-step explanation:
Y=mx+b
b represents your y-intercept
mx represents your slope
Answer:
You can use the Side-Angle-Side Postulate.
Step-by-step explanation:
The Side-Angle-Side (or SAS) Postulate basically states that if two sides of two triangles and the included angle are congruent, the two triangles are congruent.