Which congruence theorem can be used to prove △abr ≅ △rca?

The HL Theorem can be used to prove  △ABR ≅ △RCA because both triangles share the same hypotenuse and a leg.

Step-by-step explanation:

Look at the attached picture. According to which:

The HL Theorem can be used to prove  △ABR ≅ △RCA because both triangles share the same hypotenuse and a leg.

The HL theorem states that If the hypotenuse and one leg of a right triangle are congruent to the hypotenuse and one leg of another right triangle, then the triangles are congruent.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.