30 POINTS
using the following equation, find the center and radius of the circle.
x^2 + 2x + y^2 + 4y= 20

Devonte is balancing his checking account. his account statement does not include a deposit of $107.00 that he made on november 1st. what is devonte’s actual account balance?

Kilgore trout creates a new scale to diagnose depression. however, his scale only assesses one symptom of depression while ignoring others. which of the following is his new scale most likely lacking? a) test-retest reliability b) discriminant validity c) criterion validity d) alternate-forms reliability e) content validity f) none of the above

Ling is using fraction strips to add 2/3 and 7/12's the sum is one whole plus how many twelves?