How do i know this answer to this question ?? Joe has a total of 94 stamps in his stamp collection. He collected 27 in April and 34 in May. How many did he collect in June?

Stamp collected in June = 33

Step-by-step explanation:

Total stamp = 94

Stamp collected in April = 27

Stamp collected in May = 34

Stamp collected in June = x

Total stamp = April stamp + May stamp + June stamp

94 = 27 + 34 + x

94 = 61 + x

x = 94 - 61

x = 33

Stamp collected in June = 33

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

y < -3

step-by-step explanation:

-3y - 2 > 7

-3y -2 + 2 > 7+2

-3y > 9

-3y/-3 < 9/-3   (change the inequality sign when multiplying or dividing by a negative number)

y < -3