Mr Robins spent of his money on 4 similar keychains and a similar Plushies from a souvenir shop. The cost of each plushie is twice the cost of
each keychain. He bought some more plushies with of his remaining
money. How many plushies did Mr Robins buy altogether?​

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.