Question

#1
x•16=4800
5900-y=100
#2
Дано:квадрат
a-7дм
S-?
P-?

Answer 1

.............................

Answer 2

#1
x÷16=4800
x=4800÷16
x=300

5900-y=100
y=5900-100
y=5800
#2
S=a×a
S=7×7
S=49
P=a×4
P=7×4
P=28