Answer:
68
Step-by-step explanation:
Multiply the numbers to get the area
Half of perimeter (or L+ W) is:
98/2= 49 (cm)
L- W= 15
L+ W= 49
L= (49+ 15)/2= 32
W= (49-15)/2= 17
The length is 32 cm and the width is 17 cm~
Last Summer: 152 shells
This Summer: 63 Shells
7 x 9 = 63
Then, we subtract this summer's amount of shells from 152 to get our difference. 152 minus 63 equals 89 shells.
They found 89 fewer shells this year than last year.
Answer:
-12
Step-by-step explanation:
To evaluate the expression the known value of a = -8 can be substituted in so the equation becomes -8 - 4.
From there the subtraction can be completed which equals -12. This can be visually seen on a number line if you look at -8 and move left 4 spaces.
Answer:
b.332.2
Step-by-step explanation: