22. Compute the following algebraic sums:
a) 5 - 3 + 6 + 2 - 10 - 12:
b) -15 + 8 + 9 - 3 - 5 + 18;
c) 28 - 41 +62 + 3 - 102 - 5:
d) -1.2 + 5.8 - 6.7 - 5.9 + 2.4;
e) 7.4 - 5.8 + 8.3 -6.1 + 7.5:
f) 12.6 - 15.4 + 7-10;
g) 7.8 - 3.5 + 5.3 - 12.1 + 7.8;
h) 10.6 - 13.4 + 4 - 10:
i) 7 - 5 - 9 + 0.3 -0.08 ;
j) -24 + 11.02 - 3.014 + 0.05 -0.007.​

$12. that is my answer.

c

step-by-step explanation:

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.