Answer: 7a
Step-by-step explanation: Since they are like terms, you can just add or subtract them.
4a - 5a = -1a
2a + 6a = 8a
-1a + 8a = 7a
Answer:
67.5
Step-by-step explanation:
- When you calculate the 10% of AED75, it is equal to AED7.5
- Then you subtract AED7.5 from AED75 which is AED67.5
Answer:
151.5 cm^2
Step-by-step explanation:
lets cut stright acrros so you have a triangle 13 (base) by 3 cm (high)
area of a triangle is 1/2 base times hight --> 13x3/2 = 19.5cm^2
now lets doi the rectangle that is 12 by 11
Length times hight is the area is 132
add both areas 132 + 19.5
460/12 = 33.3 so about 32 trays if the smallest and 33 as the answer but best would be 33