Answer:
23.5
Step-by-step explanation:
and means plus so u add
15+(17×<u>1</u>
2
BODMAS. do the bracket 1st
17×½=
8.5
solve the equation
15+8.5=
23.5
Answer: 73 inches high
Step-by-step explanation: 57+16=73
Answer: 
Step-by-step explanation:
Given
Luis used 590 gm of flour each day
If he continues to use it for 3 weeks
A week has 7 days; so 3 weeks have 21 days
The flour used in 21 days

Thus,
of flour is used in 3 weeks