7) 15: 5 +6.5
i do not no how to do this

15 divided by 5 =3

3 +6=9

9 - 5 = 4

so 4 is the answer

Step-by-step explanation:

4

Step-by-step explanation:

PEMDAS

divide 15 and 5 and get 3 add that to 6 and get 9 then subtract 5 and your answer is 4.

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

pls mark as brainliest