True/False. If the answer is true, provide an explanation. If it is false, give a counter-example or an explanation. a) Let B be a basis for R^n. The coordinate function CB is an isomorphism.
b) Let T:R^7 → R^5. If dim(Im(T)) = 3 then dim(ker(T)) = 2.
c) Letf:R^n → R^n be a linear transformation and let B1 and B2 be bases of R^n. If f is an isomorphism, then [f]B1 B2 is also an isomorphism.

constants mean the stopped points or the points on a graph that nothing is changing, hope this

step-by-step explanation:

let x be the money she spent so that she can earn the free t-shirt.

since, she already spent $112.49

⇒

also, as per the statement: jennifer must spend $250 or more in order to qualify for a free t-shirt at the store.

then,

we have an inequality i.,e

subtract 112.49 from both sides we get;

therefore, $137. 51 more money does jennifer need to spend so that she can earn the free t-shirt