Josiah collected 15 postcards from across the United States. Then each of
his 4 grandparents gave him 7 more postcards for his collection. Which
expression could be used to find the total number of postcards he has in
his collection?
A (7+4) x 15
B (7 x 4) x 15
C (7 x 4) + 15
D (7+4) + 15

Please help for 25 points

Step-by-step explanation:

I think C. Because you would multiply the 7 and 4 then you would just add the 15

answer: all the values are within because it has a pattern that repeats from -6 to 4.

good luck!

the length of o'p' is .

step-by-step explanation:

it is given that the quadrilateral m'n'o'p' is the image of quadrilateral mnop after dilation.

the center of dilation is origin and the scale factor is 1.5.

in dilation the image and preimge are similar figures. it means the sides of image and preimage are proportional.

the scale factor is defined as

the scale factor is 1.5.

multiply both sides by op.

note: if the value of op is given, then multiply the value of op with 1.5 to get the length of side o'p'.

therefore length of o'p' is .